204431310230402 has 16 divisors (see below), whose sum is σ = 307532295391392. Its totient is φ = 101920548206400.

The previous prime is 204431310230363. The next prime is 204431310230431. The reversal of 204431310230402 is 204032013134402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152847653 + ... + 154179335.

It is an arithmetic number, because the mean of its divisors is an integer number (19220768461962).

Almost surely, 2^{204431310230402} is an apocalyptic number.

204431310230402 is a deficient number, since it is larger than the sum of its proper divisors (103100985160990).

204431310230402 is a wasteful number, since it uses less digits than its factorization.

204431310230402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553233.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 204431310230402 its reverse (204032013134402), we get a palindrome (408463323364804).

The spelling of 204431310230402 in words is "two hundred four trillion, four hundred thirty-one billion, three hundred ten million, two hundred thirty thousand, four hundred two".