230312311973 has 2 divisors, whose sum is σ = 230312311974. Its totient is φ = 230312311972.

The previous prime is 230312311939. The next prime is 230312311987. The reversal of 230312311973 is 379113213032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162620240644 + 67692071329 = 403262^2 + 260177^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230312311973 is a prime.

It is a super-2 number, since 2×230312311973² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230312311673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115156155986 + 115156155987.

It is an arithmetic number, because the mean of its divisors is an integer number (115156155987).

Almost surely, 2^230312311973 is an apocalyptic number.

It is an amenable number.

230312311973 is a deficient number, since it is larger than the sum of its proper divisors (1).

230312311973 is an equidigital number, since it uses as much as digits as its factorization.

230312311973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 35.

The spelling of 230312311973 in words is "two hundred thirty billion, three hundred twelve million, three hundred eleven thousand, nine hundred seventy-three".