111200400987 has 32 divisors (see below), whose sum is σ = 161013888000. Its totient is φ = 67857979392.

The previous prime is 111200400967. The next prime is 111200401057. The reversal of 111200400987 is 789004002111.

It is not a de Polignac number, because 111200400987 - 2¹⁹ = 111199876699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111200400967) 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, 2834814 + ... + 2873772.

It is an arithmetic number, because the mean of its divisors is an integer number (5031684000).

Almost surely, 2^111200400987 is an apocalyptic number.

111200400987 is a deficient number, since it is larger than the sum of its proper divisors (49813487013).

111200400987 is a wasteful number, since it uses less digits than its factorization.

111200400987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39587.

The product of its (nonzero) digits is 4032, while the sum is 33.

The spelling of 111200400987 in words is "one hundred eleven billion, two hundred million, four hundred thousand, nine hundred eighty-seven".