111321124443 has 16 divisors (see below), whose sum is σ = 169377488160. Its totient is φ = 72208296288.

The previous prime is 111321124433. The next prime is 111321124459. The reversal of 111321124443 is 344421123111.

It is a happy number.

111321124443 is a `hidden beast` number, since 1 + 1 + 1 + 3 + 211 + 2 + 4 + 443 = 666.

It is not a de Polignac number, because 111321124443 - 2²¹ = 111319027291 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (111321124423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55715280 + ... + 55717277.

It is an arithmetic number, because the mean of its divisors is an integer number (10586093010).

Almost surely, 2^111321124443 is an apocalyptic number.

111321124443 is a deficient number, since it is larger than the sum of its proper divisors (58056363717).

111321124443 is a wasteful number, since it uses less digits than its factorization.

111321124443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111432603 (or 111432597 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

Adding to 111321124443 its reverse (344421123111), we get a palindrome (455742247554).

The spelling of 111321124443 in words is "one hundred eleven billion, three hundred twenty-one million, one hundred twenty-four thousand, four hundred forty-three".