31023321002132 has 24 divisors (see below), whose sum is σ = 54655671688800. Its totient is φ = 15407416680480.

The previous prime is 31023321002131. The next prime is 31023321002171. The reversal of 31023321002132 is 23120012332013.

It is a junction number, because it is equal to n+sod(n) for n = 31023321002098 and 31023321002107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31023321002131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107676707 + ... + 107964437.

It is an arithmetic number, because the mean of its divisors is an integer number (2277319653700).

Almost surely, 2^{31023321002132} is an apocalyptic number.

It is an amenable number.

31023321002132 is a deficient number, since it is larger than the sum of its proper divisors (23632350686668).

31023321002132 is a wasteful number, since it uses less digits than its factorization.

31023321002132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468791 (or 468789 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31023321002132 its reverse (23120012332013), we get a palindrome (54143333334145).

The spelling of 31023321002132 in words is "thirty-one trillion, twenty-three billion, three hundred twenty-one million, two thousand, one hundred thirty-two".