204333431021413 has 4 divisors (see below), whose sum is σ = 208188778776588. Its totient is φ = 200478083266240.

The previous prime is 204333431021407. The next prime is 204333431021441. The reversal of 204333431021413 is 314120134333402.

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

It can be written as a sum of positive squares in 2 ways, for example, as 68208405110244 + 136125025911169 = 8258838^2 + 11667263^2 .

It is a cyclic number.

It is not a de Polignac number, because 204333431021413 - 2²⁵ = 204333397466981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204333432021413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1927673877508 + ... + 1927673877613.

It is an arithmetic number, because the mean of its divisors is an integer number (52047194694147).

Almost surely, 2^{204333431021413} is an apocalyptic number.

It is an amenable number.

204333431021413 is a deficient number, since it is larger than the sum of its proper divisors (3855347755175).

204333431021413 is an equidigital number, since it uses as much as digits as its factorization.

204333431021413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3855347755174.

The product of its (nonzero) digits is 62208, while the sum is 34.

Adding to 204333431021413 its reverse (314120134333402), we get a palindrome (518453565354815).

The spelling of 204333431021413 in words is "two hundred four trillion, three hundred thirty-three billion, four hundred thirty-one million, twenty-one thousand, four hundred thirteen".