31013213212132 has 24 divisors (see below), whose sum is σ = 54453838230176. Its totient is φ = 15454981009728.

The previous prime is 31013213212127. The next prime is 31013213212133. The reversal of 31013213212132 is 23121231231013.

It is a junction number, because it is equal to n+sod(n) for n = 31013213212097 and 31013213212106.

It is not an unprimeable number, because it can be changed into a prime (31013213212133) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 16242208 + ... + 18050920.

Almost surely, 2^{31013213212132} is an apocalyptic number.

It is an amenable number.

31013213212132 is a deficient number, since it is larger than the sum of its proper divisors (23440625018044).

31013213212132 is a wasteful number, since it uses less digits than its factorization.

31013213212132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1822987 (or 1822985 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 31013213212132 its reverse (23121231231013), we get a palindrome (54134444443145).

The spelling of 31013213212132 in words is "thirty-one trillion, thirteen billion, two hundred thirteen million, two hundred twelve thousand, one hundred thirty-two".