1312311120213 has 32 divisors (see below), whose sum is σ = 1844033103360. Its totient is φ = 827841971520.

The previous prime is 1312311120167. The next prime is 1312311120217. The reversal of 1312311120213 is 3120211132131.

It is not a de Polignac number, because 1312311120213 - 2³³ = 1303721185621 is a prime.

It is a super-3 number, since 3×1312311120213³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1312311120213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312311120217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217159170 + ... + 217165212.

It is an arithmetic number, because the mean of its divisors is an integer number (57626034480).

Almost surely, 2^{1312311120213} is an apocalyptic number.

It is an amenable number.

1312311120213 is a deficient number, since it is larger than the sum of its proper divisors (531721983147).

1312311120213 is a wasteful number, since it uses less digits than its factorization.

1312311120213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9969.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1312311120213 its reverse (3120211132131), we get a palindrome (4432522252344).

The spelling of 1312311120213 in words is "one trillion, three hundred twelve billion, three hundred eleven million, one hundred twenty thousand, two hundred thirteen".