100998078312 has 32 divisors (see below), whose sum is σ = 252506198880. Its totient is φ = 33664559040.

The previous prime is 100998078263. The next prime is 100998078319. The reversal of 100998078312 is 213870899001.

It is a super-2 number, since 2×100998078312² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100998078319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 567138 + ... + 723630.

It is an arithmetic number, because the mean of its divisors is an integer number (7890818715).

Almost surely, 2^100998078312 is an apocalyptic number.

100998078312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100998078312 is an abundant number, since it is smaller than the sum of its proper divisors (151508120568).

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

100998078312 is a wasteful number, since it uses less digits than its factorization.

100998078312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183393 (or 183389 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 48.

The spelling of 100998078312 in words is "one hundred billion, nine hundred ninety-eight million, seventy-eight thousand, three hundred twelve".