111011999998 has 64 divisors (see below), whose sum is σ = 185342976000. Its totient is φ = 49661618400.

The previous prime is 111011999993. The next prime is 111012000007. The reversal of 111011999998 is 899999110111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111011999993) 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, 9655033 + ... + 9666523.

It is an arithmetic number, because the mean of its divisors is an integer number (2895984000).

Almost surely, 2^111011999998 is an apocalyptic number.

111011999998 is a deficient number, since it is larger than the sum of its proper divisors (74330976002).

111011999998 is a wasteful number, since it uses less digits than its factorization.

111011999998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11741.

The product of its (nonzero) digits is 472392, while the sum is 58.

The spelling of 111011999998 in words is "one hundred eleven billion, eleven million, nine hundred ninety-nine thousand, nine hundred ninety-eight".