104021213421 has 8 divisors (see below), whose sum is σ = 138757803264. Its totient is φ = 69316049600.

The previous prime is 104021213377. The next prime is 104021213489. The reversal of 104021213421 is 124312120401.

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

It is a cyclic number.

It is not a de Polignac number, because 104021213421 - 2⁷ = 104021213293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104021213221) 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, 7848780 + ... + 7862021.

It is an arithmetic number, because the mean of its divisors is an integer number (17344725408).

Almost surely, 2^104021213421 is an apocalyptic number.

It is an amenable number.

104021213421 is a deficient number, since it is larger than the sum of its proper divisors (34736589843).

104021213421 is a wasteful number, since it uses less digits than its factorization.

104021213421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15713011.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 104021213421 its reverse (124312120401), we get a palindrome (228333333822).

The spelling of 104021213421 in words is "one hundred four billion, twenty-one million, two hundred thirteen thousand, four hundred twenty-one".