31311321210010 has 32 divisors (see below), whose sum is σ = 56598368872320. Its totient is φ = 12471681551808.

The previous prime is 31311321209983. The next prime is 31311321210017. The reversal of 31311321210010 is 1001212311313.

It is a self number, because there is not a number n which added to its sum of digits gives 31311321210010.

It is not an unprimeable number, because it can be changed into a prime (31311321210017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3791349 + ... + 8774791.

It is an arithmetic number, because the mean of its divisors is an integer number (1768699027260).

Almost surely, 2^{31311321210010} is an apocalyptic number.

31311321210010 is a deficient number, since it is larger than the sum of its proper divisors (25287047662310).

31311321210010 is a wasteful number, since it uses less digits than its factorization.

31311321210010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4986102.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 31311321210010 its reverse (1001212311313), we get a palindrome (32312533521323).

The spelling of 31311321210010 in words is "thirty-one trillion, three hundred eleven billion, three hundred twenty-one million, two hundred ten thousand, ten".