1011100998 has 32 divisors (see below), whose sum is σ = 2186173440. Its totient is φ = 310664160.

The previous prime is 1011100973. The next prime is 1011101009. The reversal of 1011100998 is 8990011101.

It is a happy number.

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 (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115638 + ... + 124073.

It is an arithmetic number, because the mean of its divisors is an integer number (68317920).

Almost surely, 2^1011100998 is an apocalyptic number.

1011100998 is an abundant number, since it is smaller than the sum of its proper divisors (1175072442).

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

1011100998 is a wasteful number, since it uses less digits than its factorization.

1011100998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239772.

The product of its (nonzero) digits is 648, while the sum is 30.

The square root of 1011100998 is about 31797.8143588518. The cubic root of 1011100998 is about 1003.6867240294.

The spelling of 1011100998 in words is "one billion, eleven million, one hundred thousand, nine hundred ninety-eight".