111105054631 has 2 divisors, whose sum is σ = 111105054632. Its totient is φ = 111105054630.

The previous prime is 111105054629. The next prime is 111105054757. The reversal of 111105054631 is 136450501111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111105054631 - 2¹ = 111105054629 is a prime.

It is a super-2 number, since 2×111105054631² (a number of 23 digits) contains 22 as substring.

Together with 111105054629, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 111105054631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111105054601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55552527315 + 55552527316.

It is an arithmetic number, because the mean of its divisors is an integer number (55552527316).

Almost surely, 2^111105054631 is an apocalyptic number.

111105054631 is a deficient number, since it is larger than the sum of its proper divisors (1).

111105054631 is an equidigital number, since it uses as much as digits as its factorization.

111105054631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 28.

Adding to 111105054631 its reverse (136450501111), we get a palindrome (247555555742).

The spelling of 111105054631 in words is "one hundred eleven billion, one hundred five million, fifty-four thousand, six hundred thirty-one".