230431430381 has 2 divisors, whose sum is σ = 230431430382. Its totient is φ = 230431430380.

The previous prime is 230431430321. The next prime is 230431430407. The reversal of 230431430381 is 183034134032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 176912772100 + 53518658281 = 420610^2 + 231341^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230431430381 is a prime.

It is a super-2 number, since 2×230431430381² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230431430311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115215715190 + 115215715191.

It is an arithmetic number, because the mean of its divisors is an integer number (115215715191).

Almost surely, 2^230431430381 is an apocalyptic number.

It is an amenable number.

230431430381 is a deficient number, since it is larger than the sum of its proper divisors (1).

230431430381 is an equidigital number, since it uses as much as digits as its factorization.

230431430381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 230431430381 in words is "two hundred thirty billion, four hundred thirty-one million, four hundred thirty thousand, three hundred eighty-one".