231168765563 has 2 divisors, whose sum is σ = 231168765564. Its totient is φ = 231168765562.

The previous prime is 231168765533. The next prime is 231168765617. The reversal of 231168765563 is 365567861132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231168765563 - 2⁸ = 231168765307 is a prime.

It is not a weakly prime, because it can be changed into another prime (231168765523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115584382781 + 115584382782.

It is an arithmetic number, because the mean of its divisors is an integer number (115584382782).

Almost surely, 2^231168765563 is an apocalyptic number.

231168765563 is a deficient number, since it is larger than the sum of its proper divisors (1).

231168765563 is an equidigital number, since it uses as much as digits as its factorization.

231168765563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5443200, while the sum is 53.

The spelling of 231168765563 in words is "two hundred thirty-one billion, one hundred sixty-eight million, seven hundred sixty-five thousand, five hundred sixty-three".