1312013023120 has 20 divisors (see below), whose sum is σ = 3050430278940. Its totient is φ = 524805209216.

The previous prime is 1312013023093. The next prime is 1312013023141. The reversal of 1312013023120 is 213203102131.

It can be written as a sum of positive squares in 2 ways, for example, as 150584354704 + 1161428668416 = 388052^2 + 1077696^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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, 8200081315 + ... + 8200081474.

It is an arithmetic number, because the mean of its divisors is an integer number (152521513947).

Almost surely, 2^{1312013023120} is an apocalyptic number.

1312013023120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312013023120 is an abundant number, since it is smaller than the sum of its proper divisors (1738417255820).

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

1312013023120 is a wasteful number, since it uses less digits than its factorization.

1312013023120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16400162802 (or 16400162796 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1312013023120 its reverse (213203102131), we get a palindrome (1525216125251).

The spelling of 1312013023120 in words is "one trillion, three hundred twelve billion, thirteen million, twenty-three thousand, one hundred twenty".