100402021321 has 8 divisors (see below), whose sum is σ = 114784392960. Its totient is φ = 86029456128.

The previous prime is 100402021297. The next prime is 100402021351. The reversal of 100402021321 is 123120204001.

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

It is not a de Polignac number, because 100402021321 - 2⁵ = 100402021289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100402021295 and 100402021304.

It is not an unprimeable number, because it can be changed into a prime (100402021351) 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, 2429656 + ... + 2470633.

It is an arithmetic number, because the mean of its divisors is an integer number (14348049120).

Almost surely, 2^100402021321 is an apocalyptic number.

It is an amenable number.

100402021321 is a deficient number, since it is larger than the sum of its proper divisors (14382371639).

100402021321 is an equidigital number, since it uses as much as digits as its factorization.

100402021321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4903223.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 100402021321 its reverse (123120204001), we get a palindrome (223522225322).

The spelling of 100402021321 in words is "one hundred billion, four hundred two million, twenty-one thousand, three hundred twenty-one".