31300211201312 has 12 divisors (see below), whose sum is σ = 61622290802646. Its totient is φ = 15650105600640.

The previous prime is 31300211201297. The next prime is 31300211201381. The reversal of 31300211201312 is 21310211200313.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 24384594581776 + 6915616619536 = 4938076^2 + 2629756^2 .

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 as a sum of consecutive naturals, namely, 489065799989 + ... + 489065800052.

Almost surely, 2^{31300211201312} is an apocalyptic number.

31300211201312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31300211201312 is a deficient number, since it is larger than the sum of its proper divisors (30322079601334).

31300211201312 is an equidigital number, since it uses as much as digits as its factorization.

31300211201312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978131600051 (or 978131600043 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 31300211201312 its reverse (21310211200313), we get a palindrome (52610422401625).

Subtracting from 31300211201312 its reverse (21310211200313), we obtain a palindrome (9990000000999).

The spelling of 31300211201312 in words is "thirty-one trillion, three hundred billion, two hundred eleven million, two hundred one thousand, three hundred twelve".