31323320302132 has 12 divisors (see below), whose sum is σ = 54816022844100. Its totient is φ = 15661599489536.

The previous prime is 31323320301997. The next prime is 31323320302159. The reversal of 31323320302132 is 23120302332313.

It can be written as a sum of positive squares in 2 ways, for example, as 23258878980516 + 8064441321616 = 4822746^2 + 2839796^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31323320302132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13993507 + ... + 16076842.

It is an arithmetic number, because the mean of its divisors is an integer number (4568001903675).

Almost surely, 2^{31323320302132} is an apocalyptic number.

It is an amenable number.

31323320302132 is a deficient number, since it is larger than the sum of its proper divisors (23492702541968).

31323320302132 is a wasteful number, since it uses less digits than its factorization.

31323320302132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30330770 (or 30330768 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 31323320302132 its reverse (23120302332313), we get a palindrome (54443622634445).

The spelling of 31323320302132 in words is "thirty-one trillion, three hundred twenty-three billion, three hundred twenty million, three hundred two thousand, one hundred thirty-two".