31310213211402 has 16 divisors (see below), whose sum is σ = 62620486331520. Its totient is φ = 10436727752352.

The previous prime is 31310213211391. The next prime is 31310213211469. The reversal of 31310213211402 is 20411231201313.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7188174 + ... + 10690662.

It is an arithmetic number, because the mean of its divisors is an integer number (3913780395720).

Almost surely, 2^{31310213211402} is an apocalyptic number.

31310213211402 is an abundant number, since it is smaller than the sum of its proper divisors (31310273120118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31310213211402 is a wasteful number, since it uses less digits than its factorization.

31310213211402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4992397.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 31310213211402 its reverse (20411231201313), we get a palindrome (51721444412715).

The spelling of 31310213211402 in words is "thirty-one trillion, three hundred ten billion, two hundred thirteen million, two hundred eleven thousand, four hundred two".