100001331444 has 96 divisors (see below), whose sum is σ = 268150930432. Its totient is φ = 28413504000.

The previous prime is 100001331433. The next prime is 100001331467. The reversal of 100001331444 is 444133100001.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 100001331444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16414839 + ... + 16420929.

Almost surely, 2^100001331444 is an apocalyptic number.

100001331444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

100001331444 is an abundant number, since it is smaller than the sum of its proper divisors (168149598988).

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

100001331444 is a wasteful number, since it uses less digits than its factorization.

100001331444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7157 (or 7155 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 100001331444 its reverse (444133100001), we get a palindrome (544134431445).

The spelling of 100001331444 in words is "one hundred billion, one million, three hundred thirty-one thousand, four hundred forty-four".