111110131291 has 2 divisors, whose sum is σ = 111110131292. Its totient is φ = 111110131290.

The previous prime is 111110131283. The next prime is 111110131337. The reversal of 111110131291 is 192131011111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111110131291 - 2³ = 111110131283 is a prime.

It is a super-2 number, since 2×111110131291² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111110131201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555065645 + 55555065646.

It is an arithmetic number, because the mean of its divisors is an integer number (55555065646).

Almost surely, 2^111110131291 is an apocalyptic number.

111110131291 is a deficient number, since it is larger than the sum of its proper divisors (1).

111110131291 is an equidigital number, since it uses as much as digits as its factorization.

111110131291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 22.

The spelling of 111110131291 in words is "one hundred eleven billion, one hundred ten million, one hundred thirty-one thousand, two hundred ninety-one".