100403261376 has 112 divisors (see below), whose sum is σ = 289888452480. Its totient is φ = 30415979520.

The previous prime is 100403261369. The next prime is 100403261449. The reversal of 100403261376 is 673162304001.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 10679910 + ... + 10689306.

Almost surely, 2^100403261376 is an apocalyptic number.

100403261376 is a gapful number since it is divisible by the number (16) 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 100403261376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144944226240).

100403261376 is an abundant number, since it is smaller than the sum of its proper divisors (189485191104).

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

100403261376 is a wasteful number, since it uses less digits than its factorization.

100403261376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14482 (or 14472 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

Adding to 100403261376 its reverse (673162304001), we get a palindrome (773565565377).

The spelling of 100403261376 in words is "one hundred billion, four hundred three million, two hundred sixty-one thousand, three hundred seventy-six".