31312103210 has 16 divisors (see below), whose sum is σ = 56364964992. Its totient is φ = 12524134800.

The previous prime is 31312103201. The next prime is 31312103243. The reversal of 31312103210 is 1230121313.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121595 + ... + 278225.

It is an arithmetic number, because the mean of its divisors is an integer number (3522810312).

Almost surely, 2^31312103210 is an apocalyptic number.

31312103210 is a deficient number, since it is larger than the sum of its proper divisors (25052861782).

31312103210 is a wasteful number, since it uses less digits than its factorization.

31312103210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176629.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31312103210 its reverse (1230121313), we get a palindrome (32542224523).

The spelling of 31312103210 in words is "thirty-one billion, three hundred twelve million, one hundred three thousand, two hundred ten".