11431110131 has 16 divisors (see below), whose sum is σ = 13835856384. Its totient is φ = 9219567744.

The previous prime is 11431110127. The next prime is 11431110133. The reversal of 11431110131 is 13101113411.

It is a cyclic number.

It is not a de Polignac number, because 11431110131 - 2² = 11431110127 is a prime.

It is a super-2 number, since 2×11431110131² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (11431110133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 667826 + ... + 684728.

It is an arithmetic number, because the mean of its divisors is an integer number (864741024).

Almost surely, 2^11431110131 is an apocalyptic number.

11431110131 is a deficient number, since it is larger than the sum of its proper divisors (2404746253).

11431110131 is a wasteful number, since it uses less digits than its factorization.

11431110131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22610.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 11431110131 its reverse (13101113411), we get a palindrome (24532223542).

The spelling of 11431110131 in words is "eleven billion, four hundred thirty-one million, one hundred ten thousand, one hundred thirty-one".