19231189132 has 12 divisors (see below), whose sum is σ = 33663135240. Its totient is φ = 9613150496.

The previous prime is 19231189121. The next prime is 19231189147. The reversal of 19231189132 is 23198113291.

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, 593257 + ... + 624832.

It is an arithmetic number, because the mean of its divisors is an integer number (2805261270).

Almost surely, 2^19231189132 is an apocalyptic number.

It is an amenable number.

19231189132 is a deficient number, since it is larger than the sum of its proper divisors (14431946108).

19231189132 is a wasteful number, since it uses less digits than its factorization.

19231189132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222040 (or 1222038 counting only the distinct ones).

The product of its digits is 23328, while the sum is 40.

The spelling of 19231189132 in words is "nineteen billion, two hundred thirty-one million, one hundred eighty-nine thousand, one hundred thirty-two".