19121110132 has 12 divisors (see below), whose sum is σ = 33758066916. Its totient is φ = 9475948160.

The previous prime is 19121110121. The next prime is 19121110171. The reversal of 19121110132 is 23101112191.

It can be written as a sum of positive squares in 2 ways, for example, as 7952002276 + 11169107856 = 89174^2 + 105684^2 .

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, 21151219 + ... + 21152122.

It is an arithmetic number, because the mean of its divisors is an integer number (2813172243).

Almost surely, 2^19121110132 is an apocalyptic number.

It is an amenable number.

19121110132 is a deficient number, since it is larger than the sum of its proper divisors (14636956784).

19121110132 is a wasteful number, since it uses less digits than its factorization.

19121110132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42303458 (or 42303456 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 22.

The spelling of 19121110132 in words is "nineteen billion, one hundred twenty-one million, one hundred ten thousand, one hundred thirty-two".