31131323323130 has 32 divisors (see below), whose sum is σ = 57845634236928. Its totient is φ = 12050495870400.

The previous prime is 31131323323013. The next prime is 31131323323183. The reversal of 31131323323130 is 3132332313113.

It is a junction number, because it is equal to n+sod(n) for n = 31131323323093 and 31131323323102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9769064 + ... + 12557756.

It is an arithmetic number, because the mean of its divisors is an integer number (1807676069904).

Almost surely, 2^{31131323323130} is an apocalyptic number.

31131323323130 is a deficient number, since it is larger than the sum of its proper divisors (26714310913798).

31131323323130 is a wasteful number, since it uses less digits than its factorization.

31131323323130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2824742.

The product of its (nonzero) digits is 8748, while the sum is 29.

Adding to 31131323323130 its reverse (3132332313113), we get a palindrome (34263655636243).

The spelling of 31131323323130 in words is "thirty-one trillion, one hundred thirty-one billion, three hundred twenty-three million, three hundred twenty-three thousand, one hundred thirty".