31311312212230 has 32 divisors (see below), whose sum is σ = 56450803627008. Its totient is φ = 12504442752000.

The previous prime is 31311312212177. The next prime is 31311312212251. The reversal of 31311312212230 is 3221221311313.

It is a junction number, because it is equal to n+sod(n) for n = 31311312212195 and 31311312212204.

It is a congruent number.

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, 14665714 + ... + 16664506.

It is an arithmetic number, because the mean of its divisors is an integer number (1764087613344).

Almost surely, 2^{31311312212230} is an apocalyptic number.

31311312212230 is a deficient number, since it is larger than the sum of its proper divisors (25139491414778).

31311312212230 is a wasteful number, since it uses less digits than its factorization.

31311312212230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001312.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 31311312212230 its reverse (3221221311313), we get a palindrome (34532533523543).

The spelling of 31311312212230 in words is "thirty-one trillion, three hundred eleven billion, three hundred twelve million, two hundred twelve thousand, two hundred thirty".