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31301331110132 = 229780673533789
BaseRepresentation
bin1110001110111111010001…
…01110001100100011110100
311002211101012120202121112112
413013133220232030203310
513100320111231011012
6150323344421110152
76410306110332266
oct707375056144364
9132741176677475
1031301331110132
119a78902429a66
1236164a8558358
13146091a244a05
147a2dc7633b36
153943459d7122
hex1c77e8b8c8f4

31301331110132 has 12 divisors (see below), whose sum is σ = 55342044179940. Its totient is φ = 15489318487296.

The previous prime is 31301331110051. The next prime is 31301331110237. The reversal of 31301331110132 is 23101113310313.

It can be written as a sum of positive squares in 2 ways, for example, as 21097816951696 + 10203514158436 = 4593236^2 + 3194294^2 .

It is a super-2 number, since 2×313013311101322 (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31301331110098 and 31301331110107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40336766507 + ... + 40336767282.

It is an arithmetic number, because the mean of its divisors is an integer number (4611837014995).

Almost surely, 231301331110132 is an apocalyptic number.

It is an amenable number.

31301331110132 is a deficient number, since it is larger than the sum of its proper divisors (24040713069808).

31301331110132 is a wasteful number, since it uses less digits than its factorization.

31301331110132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80673533890 (or 80673533888 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 31301331110132 its reverse (23101113310313), we get a palindrome (54402444420445).

The spelling of 31301331110132 in words is "thirty-one trillion, three hundred one billion, three hundred thirty-one million, one hundred ten thousand, one hundred thirty-two".

Divisors: 1 2 4 97 194 388 80673533789 161347067578 322694135156 7825332777533 15650665555066 31301331110132