231030663277 has 2 divisors, whose sum is σ = 231030663278. Its totient is φ = 231030663276.

The previous prime is 231030663257. The next prime is 231030663301. The reversal of 231030663277 is 772366030132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148235780196 + 82794883081 = 385014^2 + 287741^2 .

It is a cyclic number.

It is not a de Polignac number, because 231030663277 - 2²³ = 231022274669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231030663217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115515331638 + 115515331639.

It is an arithmetic number, because the mean of its divisors is an integer number (115515331639).

Almost surely, 2^231030663277 is an apocalyptic number.

It is an amenable number.

231030663277 is a deficient number, since it is larger than the sum of its proper divisors (1).

231030663277 is an equidigital number, since it uses as much as digits as its factorization.

231030663277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 40.

The spelling of 231030663277 in words is "two hundred thirty-one billion, thirty million, six hundred sixty-three thousand, two hundred seventy-seven".