111545402242 has 16 divisors (see below), whose sum is σ = 175642848000. Its totient is φ = 53058773520.

The previous prime is 111545402239. The next prime is 111545402261. The reversal of 111545402242 is 242204545111.

It is a super-2 number, since 2×111545402242² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 15243117 + ... + 15250432.

It is an arithmetic number, because the mean of its divisors is an integer number (10977678000).

Almost surely, 2^111545402242 is an apocalyptic number.

111545402242 is a deficient number, since it is larger than the sum of its proper divisors (64097445758).

111545402242 is a wasteful number, since it uses less digits than its factorization.

111545402242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30493641.

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 111545402242 its reverse (242204545111), we get a palindrome (353749947353).

The spelling of 111545402242 in words is "one hundred eleven billion, five hundred forty-five million, four hundred two thousand, two hundred forty-two".