231223301312977 has 2 divisors, whose sum is σ = 231223301312978. Its totient is φ = 231223301312976.

The previous prime is 231223301312959. The next prime is 231223301313019. The reversal of 231223301312977 is 779213103322132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202598329559616 + 28624971753361 = 14233704^2 + 5350231^2 .

It is a cyclic number.

It is not a de Polignac number, because 231223301312977 - 2¹¹ = 231223301310929 is a prime.

It is not a weakly prime, because it can be changed into another prime (231223301312077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115611650656488 + 115611650656489.

It is an arithmetic number, because the mean of its divisors is an integer number (115611650656489).

Almost surely, 2^{231223301312977} is an apocalyptic number.

It is an amenable number.

231223301312977 is a deficient number, since it is larger than the sum of its proper divisors (1).

231223301312977 is an equidigital number, since it uses as much as digits as its factorization.

231223301312977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 571536, while the sum is 46.

The spelling of 231223301312977 in words is "two hundred thirty-one trillion, two hundred twenty-three billion, three hundred one million, three hundred twelve thousand, nine hundred seventy-seven".