19112131320 has 32 divisors (see below), whose sum is σ = 57336394320. Its totient is φ = 5096568320.

The previous prime is 19112131309. The next prime is 19112131349. The reversal of 19112131320 is 2313121191.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79633761 + ... + 79634000.

Almost surely, 2^19112131320 is an apocalyptic number.

19112131320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19112131320 is an abundant number, since it is smaller than the sum of its proper divisors (38224263000).

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

19112131320 is a wasteful number, since it uses less digits than its factorization.

19112131320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159267775 (or 159267771 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 24.

The spelling of 19112131320 in words is "nineteen billion, one hundred twelve million, one hundred thirty-one thousand, three hundred twenty".