31322103132 has 12 divisors (see below), whose sum is σ = 73084907336. Its totient is φ = 10440701040.

The previous prime is 31322103119. The next prime is 31322103139. The reversal of 31322103132 is 23130122313.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×31322103132² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31322103099 and 31322103108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31322103139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1305087619 + ... + 1305087642.

Almost surely, 2^31322103132 is an apocalyptic number.

It is an amenable number.

31322103132 is an abundant number, since it is smaller than the sum of its proper divisors (41762804204).

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

31322103132 is a wasteful number, since it uses less digits than its factorization.

31322103132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2610175268 (or 2610175266 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31322103132 its reverse (23130122313), we get a palindrome (54452225445).

The spelling of 31322103132 in words is "thirty-one billion, three hundred twenty-two million, one hundred three thousand, one hundred thirty-two".