111431002222391 has 2 divisors, whose sum is σ = 111431002222392. Its totient is φ = 111431002222390.

The previous prime is 111431002222349. The next prime is 111431002222499. The reversal of 111431002222391 is 193222200134111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111431002222391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111431002225391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55715501111195 + 55715501111196.

It is an arithmetic number, because the mean of its divisors is an integer number (55715501111196).

Almost surely, 2^{111431002222391} is an apocalyptic number.

111431002222391 is a deficient number, since it is larger than the sum of its proper divisors (1).

111431002222391 is an equidigital number, since it uses as much as digits as its factorization.

111431002222391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 111431002222391 in words is "one hundred eleven trillion, four hundred thirty-one billion, two million, two hundred twenty-two thousand, three hundred ninety-one".