13111031131 has 8 divisors (see below), whose sum is σ = 14306398128. Its totient is φ = 11916240000.

The previous prime is 13111031083. The next prime is 13111031137. The reversal of 13111031131 is 13113011131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13111031131 - 2⁹ = 13111030619 is a prime.

It is a super-2 number, since 2×13111031131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13111031137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95650 + ... + 188071.

It is an arithmetic number, because the mean of its divisors is an integer number (1788299766).

Almost surely, 2^13111031131 is an apocalyptic number.

13111031131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13111031131 is a deficient number, since it is larger than the sum of its proper divisors (1195366997).

13111031131 is a wasteful number, since it uses less digits than its factorization.

13111031131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287933.

The product of its (nonzero) digits is 27, while the sum is 16.

Adding to 13111031131 its reverse (13113011131), we get a palindrome (26224042262).

The spelling of 13111031131 in words is "thirteen billion, one hundred eleven million, thirty-one thousand, one hundred thirty-one".