10091009020 has 24 divisors (see below), whose sum is σ = 21874704768. Its totient is φ = 3906196800.

The previous prime is 10091008999. The next prime is 10091009021. The reversal of 10091009020 is 2090019001.

It is a junction number, because it is equal to n+sod(n) for n = 10091008982 and 10091009000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10091009021) 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 7 ways as a sum of consecutive naturals, for example, 8137291 + ... + 8138530.

It is an arithmetic number, because the mean of its divisors is an integer number (911446032).

Almost surely, 2^10091009020 is an apocalyptic number.

10091009020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10091009020 is an abundant number, since it is smaller than the sum of its proper divisors (11783695748).

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

10091009020 is a wasteful number, since it uses less digits than its factorization.

10091009020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16275861 (or 16275859 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 22.

The spelling of 10091009020 in words is "ten billion, ninety-one million, nine thousand, twenty".