100993820230818 has 48 divisors (see below), whose sum is σ = 231848149020696. Its totient is φ = 31662941736960.

The previous prime is 100993820230783. The next prime is 100993820230819. The reversal of 100993820230818 is 818032028399001.

100993820230818 is a `hidden beast` number, since 1 + 0 + 0 + 99 + 38 + 202 + 308 + 18 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 72508682131209 + 28485138099609 = 8515203^2 + 5337147^2 .

It is not an unprimeable number, because it can be changed into a prime (100993820230819) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110973271 + ... + 111879642.

Almost surely, 2^{100993820230818} is an apocalyptic number.

100993820230818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

100993820230818 is an abundant number, since it is smaller than the sum of its proper divisors (130854328789878).

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

100993820230818 is a wasteful number, since it uses less digits than its factorization.

100993820230818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222854419 (or 222854416 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 100993820230818 in words is "one hundred trillion, nine hundred ninety-three billion, eight hundred twenty million, two hundred thirty thousand, eight hundred eighteen".