111243464631 has 96 divisors (see below), whose sum is σ = 185772787200. Its totient is φ = 63644555520.

The previous prime is 111243464603. The next prime is 111243464663. The reversal of 111243464631 is 136464342111.

111243464631 is a `hidden beast` number, since 1 + 1 + 1 + 2 + 4 + 3 + 4 + 646 + 3 + 1 = 666.

It is not a de Polignac number, because 111243464631 - 2⁷ = 111243464503 is a prime.

It is a super-2 number, since 2×111243464631² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111243464131) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10353460 + ... + 10364198.

It is an arithmetic number, because the mean of its divisors is an integer number (1935133200).

Almost surely, 2^111243464631 is an apocalyptic number.

111243464631 is a deficient number, since it is larger than the sum of its proper divisors (74529322569).

111243464631 is a wasteful number, since it uses less digits than its factorization.

111243464631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10901 (or 10898 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The spelling of 111243464631 in words is "one hundred eleven billion, two hundred forty-three million, four hundred sixty-four thousand, six hundred thirty-one".