111301986870 has 64 divisors (see below), whose sum is σ = 299744038080. Its totient is φ = 29386656000.

The previous prime is 111301986869. The next prime is 111301986889. The reversal of 111301986870 is 78689103111.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2013471 + ... + 2068010.

It is an arithmetic number, because the mean of its divisors is an integer number (4683500595).

Almost surely, 2^111301986870 is an apocalyptic number.

111301986870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111301986870 is an abundant number, since it is smaller than the sum of its proper divisors (188442051210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111301986870 is a wasteful number, since it uses less digits than its factorization.

111301986870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4081598 (or 4081592 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 45.

The spelling of 111301986870 in words is "one hundred eleven billion, three hundred one million, nine hundred eighty-six thousand, eight hundred seventy".