111223542988 has 6 divisors (see below), whose sum is σ = 194641200236. Its totient is φ = 55611771492.

The previous prime is 111223542973. The next prime is 111223543043. The reversal of 111223542988 is 889245322111.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13902942870 + ... + 13902942877.

Almost surely, 2^111223542988 is an apocalyptic number.

It is an amenable number.

111223542988 is a deficient number, since it is larger than the sum of its proper divisors (83417657248).

111223542988 is a wasteful number, since it uses less digits than its factorization.

111223542988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27805885751 (or 27805885749 counting only the distinct ones).

The product of its digits is 276480, while the sum is 46.

The spelling of 111223542988 in words is "one hundred eleven billion, two hundred twenty-three million, five hundred forty-two thousand, nine hundred eighty-eight".