1310120111312 has 20 divisors (see below), whose sum is σ = 2538377642436. Its totient is φ = 655054913280.

The previous prime is 1310120111303. The next prime is 1310120111341. The reversal of 1310120111312 is 2131110210131.

It can be written as a sum of positive squares in 2 ways, for example, as 95372262976 + 1214747848336 = 308824^2 + 1102156^2 .

It is a super-2 number, since 2×1310120111312² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2567108 + ... + 3034844.

Almost surely, 2^{1310120111312} is an apocalyptic number.

It is an amenable number.

1310120111312 is a deficient number, since it is larger than the sum of its proper divisors (1228257531124).

1310120111312 is a wasteful number, since it uses less digits than its factorization.

1310120111312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642806 (or 642800 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 1310120111312 its reverse (2131110210131), we get a palindrome (3441230321443).

The spelling of 1310120111312 in words is "one trillion, three hundred ten billion, one hundred twenty million, one hundred eleven thousand, three hundred twelve".