111312212011124 has 24 divisors (see below), whose sum is σ = 203278140054528. Its totient is φ = 53233037748000.

The previous prime is 111312212011109. The next prime is 111312212011139. The reversal of 111312212011124 is 421110212213111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111312212011109) and next prime (111312212011139).

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 111312212011124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35269127 + ... + 38295374.

It is an arithmetic number, because the mean of its divisors is an integer number (8469922502272).

Almost surely, 2^{111312212011124} is an apocalyptic number.

It is an amenable number.

111312212011124 is a deficient number, since it is larger than the sum of its proper divisors (91965928043404).

111312212011124 is a wasteful number, since it uses less digits than its factorization.

111312212011124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73580975 (or 73580973 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 23.

Adding to 111312212011124 its reverse (421110212213111), we get a palindrome (532422424224235).

The spelling of 111312212011124 in words is "one hundred eleven trillion, three hundred twelve billion, two hundred twelve million, eleven thousand, one hundred twenty-four".