989990120132 has 24 divisors (see below), whose sum is σ = 1889367715200. Its totient is φ = 451134736416.

The previous prime is 989990120081. The next prime is 989990120297. The reversal of 989990120132 is 231021099989.

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, 120491282 + ... + 120499497.

It is an arithmetic number, because the mean of its divisors is an integer number (78723654800).

Almost surely, 2^989990120132 is an apocalyptic number.

It is an amenable number.

989990120132 is a deficient number, since it is larger than the sum of its proper divisors (899377595068).

989990120132 is a wasteful number, since it uses less digits than its factorization.

989990120132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240990875 (or 240990873 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 53.

The spelling of 989990120132 in words is "nine hundred eighty-nine billion, nine hundred ninety million, one hundred twenty thousand, one hundred thirty-two".