103204921 has 8 divisors (see below), whose sum is σ = 106654464. Its totient is φ = 99762960.

The previous prime is 103204919. The next prime is 103204963. The reversal of 103204921 is 129402301.

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

It is not a de Polignac number, because 103204921 - 2¹ = 103204919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103204892 and 103204901.

It is not an unprimeable number, because it can be changed into a prime (103204901) 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, 43071 + ... + 45403.

It is an arithmetic number, because the mean of its divisors is an integer number (13331808).

Almost surely, 2^103204921 is an apocalyptic number.

It is an amenable number.

103204921 is a deficient number, since it is larger than the sum of its proper divisors (3449543).

103204921 is a wasteful number, since it uses less digits than its factorization.

103204921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3791.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 103204921 is about 10158.9822817052. The cubic root of 103204921 is about 469.0654751947.

The spelling of 103204921 in words is "one hundred three million, two hundred four thousand, nine hundred twenty-one".