990430031100232 has 32 divisors (see below), whose sum is σ = 1862410713408000. Its totient is φ = 493787224977984.

The previous prime is 990430031100227. The next prime is 990430031100247. The reversal of 990430031100232 is 232001130034099.

It is a junction number, because it is equal to n+sod(n) for n = 990430031100191 and 990430031100200.

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, 154275543 + ... + 160567129.

It is an arithmetic number, because the mean of its divisors is an integer number (58200334794000).

Almost surely, 2^{990430031100232} is an apocalyptic number.

It is an amenable number.

990430031100232 is a deficient number, since it is larger than the sum of its proper divisors (871980682307768).

990430031100232 is a wasteful number, since it uses less digits than its factorization.

990430031100232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6348325 (or 6348321 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 37.

The spelling of 990430031100232 in words is "nine hundred ninety trillion, four hundred thirty billion, thirty-one million, one hundred thousand, two hundred thirty-two".