204813423321 has 16 divisors (see below), whose sum is σ = 309569547840. Its totient is φ = 119405396160.

The previous prime is 204813423277. The next prime is 204813423329. The reversal of 204813423321 is 123324318402.

It is not a de Polignac number, because 204813423321 - 2⁶ = 204813423257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204813423329) 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, 138199950 + ... + 138201431.

It is an arithmetic number, because the mean of its divisors is an integer number (19348096740).

Almost surely, 2^204813423321 is an apocalyptic number.

It is an amenable number.

204813423321 is a deficient number, since it is larger than the sum of its proper divisors (104756124519).

204813423321 is a wasteful number, since it uses less digits than its factorization.

204813423321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276401416.

The product of its (nonzero) digits is 27648, while the sum is 33.

The spelling of 204813423321 in words is "two hundred four billion, eight hundred thirteen million, four hundred twenty-three thousand, three hundred twenty-one".