111355451125 has 16 divisors (see below), whose sum is σ = 139124965824. Its totient is φ = 88986051600.

The previous prime is 111355451117. The next prime is 111355451131. The reversal of 111355451125 is 521154553111.

It is not a de Polignac number, because 111355451125 - 2³ = 111355451117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 377719 + ... + 604468.

It is an arithmetic number, because the mean of its divisors is an integer number (8695310364).

Almost surely, 2^111355451125 is an apocalyptic number.

It is an amenable number.

111355451125 is a deficient number, since it is larger than the sum of its proper divisors (27769514699).

111355451125 is an frugal number, since it uses more digits than its factorization.

111355451125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983109 (or 983099 counting only the distinct ones).

The product of its digits is 15000, while the sum is 34.

The spelling of 111355451125 in words is "one hundred eleven billion, three hundred fifty-five million, four hundred fifty-one thousand, one hundred twenty-five".