990320112131022 has 24 divisors (see below), whose sum is σ = 2156927574072960. Its totient is φ = 328378396691520.

The previous prime is 990320112130963. The next prime is 990320112131023. The reversal of 990320112131022 is 220131211023099.

990320112131022 is a `hidden beast` number, since 9 + 9 + 0 + 320 + 1 + 12 + 1 + 310 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990320112131023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144025609147 + ... + 144025616022.

It is an arithmetic number, because the mean of its divisors is an integer number (89871982253040).

Almost surely, 2^{990320112131022} is an apocalyptic number.

990320112131022 is an abundant number, since it is smaller than the sum of its proper divisors (1166607461941938).

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

990320112131022 is a wasteful number, since it uses less digits than its factorization.

990320112131022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288051225368 (or 288051225365 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The spelling of 990320112131022 in words is "nine hundred ninety trillion, three hundred twenty billion, one hundred twelve million, one hundred thirty-one thousand, twenty-two".