101010009990 has 32 divisors (see below), whose sum is σ = 248976027360. Its totient is φ = 26208002304.

The previous prime is 101010009967. The next prime is 101010010007. The reversal of 101010009990 is 99900010101.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45498895 + ... + 45501114.

It is an arithmetic number, because the mean of its divisors is an integer number (7780500855).

Almost surely, 2^101010009990 is an apocalyptic number.

101010009990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101010009990 is an abundant number, since it is smaller than the sum of its proper divisors (147966017370).

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

101010009990 is a wasteful number, since it uses less digits than its factorization.

101010009990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91000056.

The product of its (nonzero) digits is 729, while the sum is 30.

The spelling of 101010009990 in words is "one hundred one billion, ten million, nine thousand, nine hundred ninety".