13231191237 has 16 divisors (see below), whose sum is σ = 19271447040. Its totient is φ = 8008038000.

The previous prime is 13231191227. The next prime is 13231191241. The reversal of 13231191237 is 73219113231.

13231191237 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13231191237 - 2⁶ = 13231191173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 13231191198 and 13231191207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231191227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246889 + ... + 295662.

It is an arithmetic number, because the mean of its divisors is an integer number (1204465440).

Almost surely, 2^13231191237 is an apocalyptic number.

It is an amenable number.

13231191237 is a deficient number, since it is larger than the sum of its proper divisors (6040255803).

13231191237 is a wasteful number, since it uses less digits than its factorization.

13231191237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543304.

The product of its digits is 6804, while the sum is 33.

The spelling of 13231191237 in words is "thirteen billion, two hundred thirty-one million, one hundred ninety-one thousand, two hundred thirty-seven".