19113012120 has 64 divisors (see below), whose sum is σ = 57550717440. Its totient is φ = 5077987200.

The previous prime is 19113012103. The next prime is 19113012131. The reversal of 19113012120 is 2121031191.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261346 + ... + 326385.

It is an arithmetic number, because the mean of its divisors is an integer number (899229960).

Almost surely, 2^19113012120 is an apocalyptic number.

19113012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19113012120 is an abundant number, since it is smaller than the sum of its proper divisors (38437705320).

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

19113012120 is a wasteful number, since it uses less digits than its factorization.

19113012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588016 (or 588012 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 21.

The spelling of 19113012120 in words is "nineteen billion, one hundred thirteen million, twelve thousand, one hundred twenty".