101804104621 has 4 divisors (see below), whose sum is σ = 102605711872. Its totient is φ = 101002497372.

The previous prime is 101804104601. The next prime is 101804104627. The reversal of 101804104621 is 126401408101.

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.

It is a cyclic number.

It is not a de Polignac number, because 101804104621 - 2²¹ = 101802007469 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101804104621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101804104627) 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, 400803435 + ... + 400803688.

It is an arithmetic number, because the mean of its divisors is an integer number (25651427968).

Almost surely, 2^101804104621 is an apocalyptic number.

It is an amenable number.

101804104621 is a deficient number, since it is larger than the sum of its proper divisors (801607251).

101804104621 is an equidigital number, since it uses as much as digits as its factorization.

101804104621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801607250.

The product of its (nonzero) digits is 1536, while the sum is 28.

The spelling of 101804104621 in words is "one hundred one billion, eight hundred four million, one hundred four thousand, six hundred twenty-one".