1010100990 has 32 divisors (see below), whose sum is σ = 2551835520. Its totient is φ = 255183264.

The previous prime is 1010100983. The next prime is 1010100991. The reversal of 1010100990 is 990010101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010100991) by changing a digit.

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, 885484 + ... + 886623.

It is an arithmetic number, because the mean of its divisors is an integer number (79744860).

Almost surely, 2^1010100990 is an apocalyptic number.

1010100990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1010100990 is an abundant number, since it is smaller than the sum of its proper divisors (1541734530).

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

1010100990 is a wasteful number, since it uses less digits than its factorization.

1010100990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772136.

The product of its (nonzero) digits is 81, while the sum is 21.

The square root of 1010100990 is about 31782.0859919547. The cubic root of 1010100990 is about 1003.3557231924.

The spelling of 1010100990 in words is "one billion, ten million, one hundred thousand, nine hundred ninety".