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31130141112 = 23327191323383
BaseRepresentation
bin11100111111100000…
…000100000110111000
32222100111212000112100
4130333200010012320
51002223304003422
622145002543400
72151301555620
oct347740040670
988314760470
1031130141112
1112225175854
126049507b60
132c2156a055
141714591880
15c22e657ac
hex73f8041b8

31130141112 has 96 divisors (see below), whose sum is σ = 96859975680. Its totient is φ = 8847731520.

The previous prime is 31130141099. The next prime is 31130141113. The reversal of 31130141112 is 21114103113.

It is a happy number.

31130141112 is a `hidden beast` number, since 311 + 301 + 41 + 1 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31130141113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65428 + ... + 257955.

It is an arithmetic number, because the mean of its divisors is an integer number (1008958080).

Almost surely, 231130141112 is an apocalyptic number.

It is an amenable number.

31130141112 is an abundant number, since it is smaller than the sum of its proper divisors (65729834568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31130141112 is a wasteful number, since it uses less digits than its factorization.

31130141112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323593 (or 323586 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 31130141112 its reverse (21114103113), we get a palindrome (52244244225).

The spelling of 31130141112 in words is "thirty-one billion, one hundred thirty million, one hundred forty-one thousand, one hundred twelve".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 56 63 72 84 126 168 191 252 382 504 573 764 1146 1337 1528 1719 2292 2674 3438 4011 4584 5348 6876 8022 10696 12033 13752 16044 24066 32088 48132 96264 323383 646766 970149 1293532 1940298 2263681 2587064 2910447 3880596 4527362 5820894 6791043 7761192 9054724 11641788 13582086 18109448 20373129 23283576 27164172 40746258 54328344 61766153 81492516 123532306 162985032 185298459 247064612 370596918 432363071 494129224 555895377 741193836 864726142 1111790754 1297089213 1482387672 1729452284 2223581508 2594178426 3458904568 3891267639 4447163016 5188356852 7782535278 10376713704 15565070556 31130141112