13000032131 has 4 divisors (see below), whose sum is σ = 13038608232. Its totient is φ = 12961456032.

The previous prime is 13000032127. The next prime is 13000032139. The reversal of 13000032131 is 13123000031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13000032131 - 2² = 13000032127 is a prime.

It is a super-2 number, since 2×13000032131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13000032139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19287545 + ... + 19288218.

It is an arithmetic number, because the mean of its divisors is an integer number (3259652058).

Almost surely, 2^13000032131 is an apocalyptic number.

13000032131 is a deficient number, since it is larger than the sum of its proper divisors (38576101).

13000032131 is an equidigital number, since it uses as much as digits as its factorization.

13000032131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38576100.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 13000032131 its reverse (13123000031), we get a palindrome (26123032162).

The spelling of 13000032131 in words is "thirteen billion, thirty-two thousand, one hundred thirty-one".