100401334521 has 8 divisors (see below), whose sum is σ = 133869917280. Its totient is φ = 66933487392.

The previous prime is 100401334511. The next prime is 100401334639. The reversal of 100401334521 is 125433104001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100401334521 - 2⁶ = 100401334457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100401334491 and 100401334500.

It is not an unprimeable number, because it can be changed into a prime (100401334511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393885 + ... + 596613.

It is an arithmetic number, because the mean of its divisors is an integer number (16733739660).

Almost surely, 2^100401334521 is an apocalyptic number.

It is an amenable number.

100401334521 is a deficient number, since it is larger than the sum of its proper divisors (33468582759).

100401334521 is a wasteful number, since it uses less digits than its factorization.

100401334521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367815.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 100401334521 its reverse (125433104001), we get a palindrome (225834438522).

The spelling of 100401334521 in words is "one hundred billion, four hundred one million, three hundred thirty-four thousand, five hundred twenty-one".