1230313031988 has 48 divisors (see below), whose sum is σ = 3017095549440. Its totient is φ = 389451595104.

The previous prime is 1230313031951. The next prime is 1230313031999. The reversal of 1230313031988 is 8891303130321.

It is a super-2 number, since 2×1230313031988² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15996370 + ... + 16073097.

It is an arithmetic number, because the mean of its divisors is an integer number (62856157280).

Almost surely, 2^{1230313031988} is an apocalyptic number.

It is an amenable number.

1230313031988 is an abundant number, since it is smaller than the sum of its proper divisors (1786782517452).

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

1230313031988 is a wasteful number, since it uses less digits than its factorization.

1230313031988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32069636 (or 32069634 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The spelling of 1230313031988 in words is "one trillion, two hundred thirty billion, three hundred thirteen million, thirty-one thousand, nine hundred eighty-eight".