13311231193 has 4 divisors (see below), whose sum is σ = 14335172068. Its totient is φ = 12287290320.

The previous prime is 13311231179. The next prime is 13311231203. The reversal of 13311231193 is 39113211331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39113211331 = 11003 ⋅3554777.

It can be written as a sum of positive squares in 2 ways, for example, as 7863610329 + 5447620864 = 88677^2 + 73808^2 .

It is a cyclic number.

It is not a de Polignac number, because 13311231193 - 2⁵ = 13311231161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13311234193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511970418 + ... + 511970443.

It is an arithmetic number, because the mean of its divisors is an integer number (3583793017).

Almost surely, 2^13311231193 is an apocalyptic number.

13311231193 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13311231193 is a deficient number, since it is larger than the sum of its proper divisors (1023940875).

13311231193 is a wasteful number, since it uses less digits than its factorization.

13311231193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023940874.

The product of its digits is 1458, while the sum is 28.

The spelling of 13311231193 in words is "thirteen billion, three hundred eleven million, two hundred thirty-one thousand, one hundred ninety-three".