13012131340 has 36 divisors (see below), whose sum is σ = 29589132384. Its totient is φ = 4804478016.

The previous prime is 13012131311. The next prime is 13012131371. The reversal of 13012131340 is 4313121031.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1921492 + ... + 1928251.

It is an arithmetic number, because the mean of its divisors is an integer number (821920344).

Almost surely, 2^13012131340 is an apocalyptic number.

13012131340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13012131340 is an abundant number, since it is smaller than the sum of its proper divisors (16577001044).

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

13012131340 is a wasteful number, since it uses less digits than its factorization.

13012131340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3849778 (or 3849763 counting only the distinct ones).

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

Adding to 13012131340 its reverse (4313121031), we get a palindrome (17325252371).

The spelling of 13012131340 in words is "thirteen billion, twelve million, one hundred thirty-one thousand, three hundred forty".