1312025013 has 32 divisors (see below), whose sum is σ = 2107392000. Its totient is φ = 801949248.

The previous prime is 1312024981. The next prime is 1312025023. The reversal of 1312025013 is 3105202131.

It is not a de Polignac number, because 1312025013 - 2⁵ = 1312024981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312025023) 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, 39756 + ... + 64842.

It is an arithmetic number, because the mean of its divisors is an integer number (65856000).

Almost surely, 2^1312025013 is an apocalyptic number.

1312025013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1312025013 is a deficient number, since it is larger than the sum of its proper divisors (795366987).

1312025013 is a wasteful number, since it uses less digits than its factorization.

1312025013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25258 (or 25252 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1312025013 is about 36221.8858288742. The cubic root of 1312025013 is about 1094.7476919150.

Adding to 1312025013 its reverse (3105202131), we get a palindrome (4417227144).

The spelling of 1312025013 in words is "one billion, three hundred twelve million, twenty-five thousand, thirteen".