13000000312 has 16 divisors (see below), whose sum is σ = 26250000840. Its totient is φ = 6000000096.

The previous prime is 13000000261. The next prime is 13000000331. The reversal of 13000000312 is 21300000031.

It is a super-2 number, since 2×13000000312² (a number of 21 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, 62499898 + ... + 62500105.

Almost surely, 2^13000000312 is an apocalyptic number.

It is an amenable number.

13000000312 is an abundant number, since it is smaller than the sum of its proper divisors (13250000528).

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

13000000312 is a wasteful number, since it uses less digits than its factorization.

13000000312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125000022 (or 125000018 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

Adding to 13000000312 its reverse (21300000031), we get a palindrome (34300000343).

It can be divided in two parts, 1300000031 and 2, that multiplied together give a palindrome (2600000062).

The spelling of 13000000312 in words is "thirteen billion, three hundred twelve", and thus it is an aban number.