204302431520254 has 4 divisors (see below), whose sum is σ = 306453647280384. Its totient is φ = 102151215760126.

The previous prime is 204302431520251. The next prime is 204302431520323. The reversal of 204302431520254 is 452025134203402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×204302431520254² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204302431520251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51075607880062 + ... + 51075607880065.

It is an arithmetic number, because the mean of its divisors is an integer number (76613411820096).

Almost surely, 2^{204302431520254} is an apocalyptic number.

204302431520254 is a deficient number, since it is larger than the sum of its proper divisors (102151215760130).

204302431520254 is a wasteful number, since it uses less digits than its factorization.

204302431520254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102151215760129.

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 204302431520254 its reverse (452025134203402), we get a palindrome (656327565723656).

The spelling of 204302431520254 in words is "two hundred four trillion, three hundred two billion, four hundred thirty-one million, five hundred twenty thousand, two hundred fifty-four".