31102232012132 has 6 divisors (see below), whose sum is σ = 54428906021238. Its totient is φ = 15551116006064.

The previous prime is 31102232012123. The next prime is 31102232012171. The reversal of 31102232012132 is 23121023220113.

It can be written as a sum of positive squares in only one way, i.e., 26482715730496 + 4619516281636 = 5146136^2 + 2149306^2 .

It is a super-2 number, since 2×31102232012132² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31102232012098 and 31102232012107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3887779001513 + ... + 3887779001520.

It is an arithmetic number, because the mean of its divisors is an integer number (9071484336873).

Almost surely, 2^{31102232012132} is an apocalyptic number.

It is an amenable number.

31102232012132 is a deficient number, since it is larger than the sum of its proper divisors (23326674009106).

31102232012132 is a wasteful number, since it uses less digits than its factorization.

31102232012132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7775558003037 (or 7775558003035 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31102232012132 its reverse (23121023220113), we get a palindrome (54223255232245).

The spelling of 31102232012132 in words is "thirty-one trillion, one hundred two billion, two hundred thirty-two million, twelve thousand, one hundred thirty-two".