13111033131 has 96 divisors (see below), whose sum is σ = 23306849280. Its totient is φ = 6932293632.

The previous prime is 13111033129. The next prime is 13111033141. The reversal of 13111033131 is 13133011131.

It is not a de Polignac number, because 13111033131 - 2¹ = 13111033129 is a prime.

It is a super-2 number, since 2×13111033131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13111033141) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 25068636 + ... + 25069158.

It is an arithmetic number, because the mean of its divisors is an integer number (242779680).

Almost surely, 2^13111033131 is an apocalyptic number.

13111033131 is a deficient number, since it is larger than the sum of its proper divisors (10195816149).

13111033131 is a wasteful number, since it uses less digits than its factorization.

13111033131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905 (or 902 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

Adding to 13111033131 its reverse (13133011131), we get a palindrome (26244044262).

The spelling of 13111033131 in words is "thirteen billion, one hundred eleven million, thirty-three thousand, one hundred thirty-one".