13011044231 has 4 divisors (see below), whose sum is σ = 13776399792. Its totient is φ = 12245688672.

The previous prime is 13011044177. The next prime is 13011044239. The reversal of 13011044231 is 13244011031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13244011031 = 3203 ⋅4134877.

It is a cyclic number.

It is not a de Polignac number, because 13011044231 - 2¹⁴ = 13011027847 is a prime.

It is a super-2 number, since 2×13011044231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13011044239) 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, 382677755 + ... + 382677788.

It is an arithmetic number, because the mean of its divisors is an integer number (3444099948).

Almost surely, 2^13011044231 is an apocalyptic number.

13011044231 is a deficient number, since it is larger than the sum of its proper divisors (765355561).

13011044231 is an equidigital number, since it uses as much as digits as its factorization.

13011044231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765355560.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 13011044231 its reverse (13244011031), we get a palindrome (26255055262).

The spelling of 13011044231 in words is "thirteen billion, eleven million, forty-four thousand, two hundred thirty-one".