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31112132023 = 710741538227
BaseRepresentation
bin11100111110011011…
…010111010110110111
32222022020222001201001
4130332123113112313
51002204201211043
622143120544131
72150662521160
oct347633272667
988266861631
1031112132023
1112215a95305
126043482047
132c1a902b9b
141712024767
15c215a974d
hex73e6d75b7

31112132023 has 8 divisors (see below), whose sum is σ = 35889028992. Its totient is φ = 26418311736.

The previous prime is 31112132017. The next prime is 31112132033. The reversal of 31112132023 is 32023121113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31112132023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31112132003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20768365 + ... + 20769862.

It is an arithmetic number, because the mean of its divisors is an integer number (4486128624).

Almost surely, 231112132023 is an apocalyptic number.

31112132023 is a deficient number, since it is larger than the sum of its proper divisors (4776896969).

31112132023 is a wasteful number, since it uses less digits than its factorization.

31112132023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41538341.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31112132023 its reverse (32023121113), we get a palindrome (63135253136).

The spelling of 31112132023 in words is "thirty-one billion, one hundred twelve million, one hundred thirty-two thousand, twenty-three".

Divisors: 1 7 107 749 41538227 290767589 4444590289 31112132023