1312013424 has 20 divisors (see below), whose sum is σ = 3389368136. Its totient is φ = 437337792.

The previous prime is 1312013419. The next prime is 1312013459. The reversal of 1312013424 is 4243102131.

It is a self number, because there is not a number n which added to its sum of digits gives 1312013424.

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, 13666759 + ... + 13666854.

Almost surely, 2^1312013424 is an apocalyptic number.

It is an amenable number.

1312013424 is an abundant number, since it is smaller than the sum of its proper divisors (2077354712).

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

1312013424 is a wasteful number, since it uses less digits than its factorization.

1312013424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27333624 (or 27333618 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1312013424 is about 36221.7258561764. The cubic root of 1312013424 is about 1094.7444686359.

Adding to 1312013424 its reverse (4243102131), we get a palindrome (5555115555).

The spelling of 1312013424 in words is "one billion, three hundred twelve million, thirteen thousand, four hundred twenty-four".