231613230652663 has 2 divisors, whose sum is σ = 231613230652664. Its totient is φ = 231613230652662.

The previous prime is 231613230652561. The next prime is 231613230652751. The reversal of 231613230652663 is 366256032316132.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231613230652663 - 2¹⁷ = 231613230521591 is a prime.

It is a super-2 number, since 2×231613230652663² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231613230622663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115806615326331 + 115806615326332.

It is an arithmetic number, because the mean of its divisors is an integer number (115806615326332).

Almost surely, 2^{231613230652663} is an apocalyptic number.

231613230652663 is a deficient number, since it is larger than the sum of its proper divisors (1).

231613230652663 is an equidigital number, since it uses as much as digits as its factorization.

231613230652663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4199040, while the sum is 49.

Adding to 231613230652663 its reverse (366256032316132), we get a palindrome (597869262968795).

The spelling of 231613230652663 in words is "two hundred thirty-one trillion, six hundred thirteen billion, two hundred thirty million, six hundred fifty-two thousand, six hundred sixty-three".