231136286910563 has 2 divisors, whose sum is σ = 231136286910564. Its totient is φ = 231136286910562.

The previous prime is 231136286910547. The next prime is 231136286910569. The reversal of 231136286910563 is 365019682631132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231136286910563 - 2⁴ = 231136286910547 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 231136286910499 and 231136286910508.

It is not a weakly prime, because it can be changed into another prime (231136286910569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115568143455281 + 115568143455282.

It is an arithmetic number, because the mean of its divisors is an integer number (115568143455282).

Almost surely, 2^{231136286910563} is an apocalyptic number.

231136286910563 is a deficient number, since it is larger than the sum of its proper divisors (1).

231136286910563 is an equidigital number, since it uses as much as digits as its factorization.

231136286910563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8398080, while the sum is 56.

The spelling of 231136286910563 in words is "two hundred thirty-one trillion, one hundred thirty-six billion, two hundred eighty-six million, nine hundred ten thousand, five hundred sixty-three".