31311011202132 has 48 divisors (see below), whose sum is σ = 74931891334272. Its totient is φ = 10170070187520.

The previous prime is 31311011202131. The next prime is 31311011202187. The reversal of 31311011202132 is 23120211011313.

It is a super-2 number, since 2×31311011202132² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31311011202099 and 31311011202108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31311011202131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38258673 + ... + 39068504.

It is an arithmetic number, because the mean of its divisors is an integer number (1561081069464).

Almost surely, 2^{31311011202132} is an apocalyptic number.

It is an amenable number.

31311011202132 is an abundant number, since it is smaller than the sum of its proper divisors (43620880132140).

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

31311011202132 is a wasteful number, since it uses less digits than its factorization.

31311011202132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77328048 (or 77328046 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 31311011202132 its reverse (23120211011313), we get a palindrome (54431222213445).

The spelling of 31311011202132 in words is "thirty-one trillion, three hundred eleven billion, eleven million, two hundred two thousand, one hundred thirty-two".