111331110131 has 2 divisors, whose sum is σ = 111331110132. Its totient is φ = 111331110130.

The previous prime is 111331110097. The next prime is 111331110139. The reversal of 111331110131 is 131011133111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111331110131 - 2⁶ = 111331110067 is a prime.

It is a super-2 number, since 2×111331110131² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111331110139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55665555065 + 55665555066.

It is an arithmetic number, because the mean of its divisors is an integer number (55665555066).

Almost surely, 2^111331110131 is an apocalyptic number.

111331110131 is a deficient number, since it is larger than the sum of its proper divisors (1).

111331110131 is an equidigital number, since it uses as much as digits as its factorization.

111331110131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27, while the sum is 17.

Adding to 111331110131 its reverse (131011133111), we get a palindrome (242342243242).

The spelling of 111331110131 in words is "one hundred eleven billion, three hundred thirty-one million, one hundred ten thousand, one hundred thirty-one".