100012320044 has 180 divisors, whose sum is σ = 226393558776. Its totient is φ = 38618221824.

The previous prime is 100012319989. The next prime is 100012320047. The reversal of 100012320044 is 440023210001.

It is not an unprimeable number, because it can be changed into a prime (100012320047) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 69791552 + ... + 69792984.

Almost surely, 2^100012320044 is an apocalyptic number.

100012320044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100012320044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113196779388).

100012320044 is an abundant number, since it is smaller than the sum of its proper divisors (126381238732).

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

100012320044 is a wasteful number, since it uses less digits than its factorization.

100012320044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534 (or 1498 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 100012320044 its reverse (440023210001), we get a palindrome (540035530045).

The spelling of 100012320044 in words is "one hundred billion, twelve million, three hundred twenty thousand, forty-four".