111400512542 has 64 divisors (see below), whose sum is σ = 198240058368. Its totient is φ = 46376064000.

The previous prime is 111400512541. The next prime is 111400512607. The reversal of 111400512542 is 245215004111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111400512541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4345442 + ... + 4371002.

It is an arithmetic number, because the mean of its divisors is an integer number (3097500912).

Almost surely, 2^111400512542 is an apocalyptic number.

111400512542 is a deficient number, since it is larger than the sum of its proper divisors (86839545826).

111400512542 is a wasteful number, since it uses less digits than its factorization.

111400512542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25905.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 111400512542 its reverse (245215004111), we get a palindrome (356615516653).

The spelling of 111400512542 in words is "one hundred eleven billion, four hundred million, five hundred twelve thousand, five hundred forty-two".