13013231193 has 24 divisors (see below), whose sum is σ = 19193596968. Its totient is φ = 8494129152.

The previous prime is 13013231191. The next prime is 13013231207. The reversal of 13013231193 is 39113231031.

13013231193 is a `hidden beast` number, since 130 + 132 + 311 + 93 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1229694489 + 11783536704 = 35067^2 + 108552^2 .

It is not a de Polignac number, because 13013231193 - 2¹ = 13013231191 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13013231191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17721 + ... + 162297.

It is an arithmetic number, because the mean of its divisors is an integer number (799733207).

Almost surely, 2^13013231193 is an apocalyptic number.

It is an amenable number.

13013231193 is a deficient number, since it is larger than the sum of its proper divisors (6180365775).

13013231193 is a wasteful number, since it uses less digits than its factorization.

13013231193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144793 (or 144790 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The spelling of 13013231193 in words is "thirteen billion, thirteen million, two hundred thirty-one thousand, one hundred ninety-three".