204330352531 has 2 divisors, whose sum is σ = 204330352532. Its totient is φ = 204330352530.

The previous prime is 204330352493. The next prime is 204330352537. The reversal of 204330352531 is 135253033402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204330352531 - 2⁹ = 204330352019 is a prime.

It is a super-2 number, since 2×204330352531² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204330352493 and 204330352502.

It is not a weakly prime, because it can be changed into another prime (204330352537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102165176265 + 102165176266.

It is an arithmetic number, because the mean of its divisors is an integer number (102165176266).

Almost surely, 2^204330352531 is an apocalyptic number.

204330352531 is a deficient number, since it is larger than the sum of its proper divisors (1).

204330352531 is an equidigital number, since it uses as much as digits as its factorization.

204330352531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 204330352531 its reverse (135253033402), we get a palindrome (339583385933).

The spelling of 204330352531 in words is "two hundred four billion, three hundred thirty million, three hundred fifty-two thousand, five hundred thirty-one".