100404120344 has 64 divisors (see below), whose sum is σ = 210611832480. Its totient is φ = 44476288000.

The previous prime is 100404120317. The next prime is 100404120389. The reversal of 100404120344 is 443021404001.

It is a happy number.

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, 3380342 + ... + 3409914.

Almost surely, 2^100404120344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100404120344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105305916240).

100404120344 is an abundant number, since it is smaller than the sum of its proper divisors (110207712136).

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

100404120344 is a wasteful number, since it uses less digits than its factorization.

100404120344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30572 (or 30568 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 100404120344 its reverse (443021404001), we get a palindrome (543425524345).

The spelling of 100404120344 in words is "one hundred billion, four hundred four million, one hundred twenty thousand, three hundred forty-four".