230331201917 has 2 divisors, whose sum is σ = 230331201918. Its totient is φ = 230331201916.

The previous prime is 230331201907. The next prime is 230331201967. The reversal of 230331201917 is 719102133032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198506782681 + 31824419236 = 445541^2 + 178394^2 .

It is a cyclic number.

It is not a de Polignac number, because 230331201917 - 2⁶ = 230331201853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230331201907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115165600958 + 115165600959.

It is an arithmetic number, because the mean of its divisors is an integer number (115165600959).

Almost surely, 2^230331201917 is an apocalyptic number.

It is an amenable number.

230331201917 is a deficient number, since it is larger than the sum of its proper divisors (1).

230331201917 is an equidigital number, since it uses as much as digits as its factorization.

230331201917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 32.

Adding to 230331201917 its reverse (719102133032), we get a palindrome (949433334949).

The spelling of 230331201917 in words is "two hundred thirty billion, three hundred thirty-one million, two hundred one thousand, nine hundred seventeen".