104012203921 has 4 divisors (see below), whose sum is σ = 104013196144. Its totient is φ = 104011211700.

The previous prime is 104012203907. The next prime is 104012203931. The reversal of 104012203921 is 129302210401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 104012203921 - 2⁹ = 104012203409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104012203931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317415 + ... + 555676.

It is an arithmetic number, because the mean of its divisors is an integer number (26003299036).

Almost surely, 2^104012203921 is an apocalyptic number.

It is an amenable number.

104012203921 is a deficient number, since it is larger than the sum of its proper divisors (992223).

104012203921 is an equidigital number, since it uses as much as digits as its factorization.

104012203921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992222.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 104012203921 in words is "one hundred four billion, twelve million, two hundred three thousand, nine hundred twenty-one".