204003330431 has 2 divisors, whose sum is σ = 204003330432. Its totient is φ = 204003330430.

The previous prime is 204003330413. The next prime is 204003330493. The reversal of 204003330431 is 134033300402.

Together with previous prime (204003330413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204003330431 is a prime.

It is a super-2 number, since 2×204003330431² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204003330397 and 204003330406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204003330131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102001665215 + 102001665216.

It is an arithmetic number, because the mean of its divisors is an integer number (102001665216).

Almost surely, 2^204003330431 is an apocalyptic number.

204003330431 is a deficient number, since it is larger than the sum of its proper divisors (1).

204003330431 is an equidigital number, since it uses as much as digits as its factorization.

204003330431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 204003330431 its reverse (134033300402), we get a palindrome (338036630833).

The spelling of 204003330431 in words is "two hundred four billion, three million, three hundred thirty thousand, four hundred thirty-one".