991003000232 has 32 divisors (see below), whose sum is σ = 2123611214400. Its totient is φ = 424708900224.

The previous prime is 991003000223. The next prime is 991003000249. The reversal of 991003000232 is 232000300199.

It is a super-3 number, since 3×991003000232³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 991003000195 and 991003000204.

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, 5439203 + ... + 5618445.

It is an arithmetic number, because the mean of its divisors is an integer number (66362850450).

Almost surely, 2^991003000232 is an apocalyptic number.

It is an amenable number.

991003000232 is an abundant number, since it is smaller than the sum of its proper divisors (1132608214168).

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

991003000232 is a wasteful number, since it uses less digits than its factorization.

991003000232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277985 (or 277981 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 29.

The spelling of 991003000232 in words is "nine hundred ninety-one billion, three million, two hundred thirty-two", and thus it is an aban number.