101011111099990 has 64 divisors (see below), whose sum is σ = 233507959888896. Its totient is φ = 30578423306112.

The previous prime is 101011111099963. The next prime is 101011111100033. The reversal of 101011111099990 is 99990111110101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2413049092 + ... + 2413090951.

It is an arithmetic number, because the mean of its divisors is an integer number (3648561873264).

Almost surely, 2^{101011111099990} is an apocalyptic number.

101011111099990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101011111099990 is an abundant number, since it is smaller than the sum of its proper divisors (132496848788906).

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

101011111099990 is a wasteful number, since it uses less digits than its factorization.

101011111099990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4826140093.

The product of its (nonzero) digits is 6561, while the sum is 43.

The spelling of 101011111099990 in words is "one hundred one trillion, eleven billion, one hundred eleven million, ninety-nine thousand, nine hundred ninety".