31322012013232 has 40 divisors (see below), whose sum is σ = 64421369625600. Its totient is φ = 14701878868992.

The previous prime is 31322012013223. The next prime is 31322012013343. The reversal of 31322012013232 is 23231021022313.

It is a junction number, because it is equal to n+sod(n) for n = 31322012013197 and 31322012013206.

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 in 7 ways as a sum of consecutive naturals, for example, 147907632 + ... + 148119247.

It is an arithmetic number, because the mean of its divisors is an integer number (1610534240640).

Almost surely, 2^{31322012013232} is an apocalyptic number.

It is an amenable number.

31322012013232 is an abundant number, since it is smaller than the sum of its proper divisors (33099357612368).

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

31322012013232 is a wasteful number, since it uses less digits than its factorization.

31322012013232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296027293 (or 296027287 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31322012013232 its reverse (23231021022313), we get a palindrome (54553033035545).

The spelling of 31322012013232 in words is "thirty-one trillion, three hundred twenty-two billion, twelve million, thirteen thousand, two hundred thirty-two".