204023333431 has 2 divisors, whose sum is σ = 204023333432. Its totient is φ = 204023333430.

The previous prime is 204023333429. The next prime is 204023333447. The reversal of 204023333431 is 134333320402.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204023333431 - 2¹ = 204023333429 is a prime.

It is a super-2 number, since 2×204023333431² (a number of 23 digits) contains 22 as substring.

Together with 204023333429, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 204023333431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204023333131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102011666715 + 102011666716.

It is an arithmetic number, because the mean of its divisors is an integer number (102011666716).

Almost surely, 2^204023333431 is an apocalyptic number.

204023333431 is a deficient number, since it is larger than the sum of its proper divisors (1).

204023333431 is an equidigital number, since it uses as much as digits as its factorization.

204023333431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 204023333431 its reverse (134333320402), we get a palindrome (338356653833).

The spelling of 204023333431 in words is "two hundred four billion, twenty-three million, three hundred thirty-three thousand, four hundred thirty-one".