31123130322010 has 16 divisors (see below), whose sum is σ = 56021698220616. Its totient is φ = 12449237986368.

The previous prime is 31123130321923. The next prime is 31123130322059. The reversal of 31123130322010 is 1022303132113.

It can be written as a sum of positive squares in 4 ways, for example, as 26420083162209 + 4703047159801 = 5140047^2 + 2168651^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15605212 + ... + 17486248.

Almost surely, 2^{31123130322010} is an apocalyptic number.

31123130322010 is a deficient number, since it is larger than the sum of its proper divisors (24898567898606).

31123130322010 is a wasteful number, since it uses less digits than its factorization.

31123130322010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3535617.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 31123130322010 its reverse (1022303132113), we get a palindrome (32145433454123).

The spelling of 31123130322010 in words is "thirty-one trillion, one hundred twenty-three billion, one hundred thirty million, three hundred twenty-two thousand, ten".