10019009020 has 24 divisors (see below), whose sum is σ = 21095449200. Its totient is φ = 3997026432.

The previous prime is 10019008969. The next prime is 10019009029. The reversal of 10019009020 is 2090091001.

It is a junction number, because it is equal to n+sod(n) for n = 10019008982 and 10019009000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10019009029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 653305 + ... + 668464.

It is an arithmetic number, because the mean of its divisors is an integer number (878977050).

Almost surely, 2^10019009020 is an apocalyptic number.

10019009020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10019009020 is an abundant number, since it is smaller than the sum of its proper divisors (11076440180).

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

10019009020 is a wasteful number, since it uses less digits than its factorization.

10019009020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322157 (or 1322155 counting only the distinct ones).

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

The spelling of 10019009020 in words is "ten billion, nineteen million, nine thousand, twenty".