111355374487 has 36 divisors (see below), whose sum is σ = 131526841080. Its totient is φ = 94001668992.

The previous prime is 111355374479. The next prime is 111355374503. The reversal of 111355374487 is 784473553111.

It is not a de Polignac number, because 111355374487 - 2³ = 111355374479 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 111355374487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111355374407) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 147100513 + ... + 147101269.

Almost surely, 2^111355374487 is an apocalyptic number.

111355374487 is a deficient number, since it is larger than the sum of its proper divisors (20171466593).

111355374487 is an frugal number, since it uses more digits than its factorization.

111355374487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328 (or 1232 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 49.

The spelling of 111355374487 in words is "one hundred eleven billion, three hundred fifty-five million, three hundred seventy-four thousand, four hundred eighty-seven".