111121111982 has 8 divisors (see below), whose sum is σ = 175454387400. Its totient is φ = 52636316184.

The previous prime is 111121111961. The next prime is 111121111991. The reversal of 111121111982 is 289111121111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1462119857 + ... + 1462119932.

It is an arithmetic number, because the mean of its divisors is an integer number (21931798425).

Almost surely, 2^111121111982 is an apocalyptic number.

111121111982 is a deficient number, since it is larger than the sum of its proper divisors (64333275418).

111121111982 is a wasteful number, since it uses less digits than its factorization.

111121111982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2924239810.

The product of its digits is 288, while the sum is 29.

The spelling of 111121111982 in words is "one hundred eleven billion, one hundred twenty-one million, one hundred eleven thousand, nine hundred eighty-two".