1019109200920 has 16 divisors (see below), whose sum is σ = 2292995702160. Its totient is φ = 407643680352.

The previous prime is 1019109200887. The next prime is 1019109200933. The reversal of 1019109200920 is 290029019101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12738864972 + ... + 12738865051.

It is an arithmetic number, because the mean of its divisors is an integer number (143312231385).

Almost surely, 2^{1019109200920} is an apocalyptic number.

1019109200920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1019109200920 is an abundant number, since it is smaller than the sum of its proper divisors (1273886501240).

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

1019109200920 is a wasteful number, since it uses less digits than its factorization.

1019109200920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25477730034 (or 25477730030 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 34.

The spelling of 1019109200920 in words is "one trillion, nineteen billion, one hundred nine million, two hundred thousand, nine hundred twenty".