204214324120321 has 16 divisors (see below), whose sum is σ = 211445889714688. Its totient is φ = 197023049308800.

The previous prime is 204214324120237. The next prime is 204214324120379. The reversal of 204214324120321 is 123021423412402.

It is a cyclic number.

It is not a de Polignac number, because 204214324120321 - 2⁷ = 204214324120193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204214324420321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318108955 + ... + 318750271.

It is an arithmetic number, because the mean of its divisors is an integer number (13215368107168).

Almost surely, 2^{204214324120321} is an apocalyptic number.

It is an amenable number.

204214324120321 is a deficient number, since it is larger than the sum of its proper divisors (7231565594367).

204214324120321 is a wasteful number, since it uses less digits than its factorization.

204214324120321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672712.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 204214324120321 its reverse (123021423412402), we get a palindrome (327235747532723).

The spelling of 204214324120321 in words is "two hundred four trillion, two hundred fourteen billion, three hundred twenty-four million, one hundred twenty thousand, three hundred twenty-one".