231025404563 has 2 divisors, whose sum is σ = 231025404564. Its totient is φ = 231025404562.

The previous prime is 231025404529. The next prime is 231025404583. The reversal of 231025404563 is 365404520132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231025404563 - 2⁶ = 231025404499 is a prime.

It is not a weakly prime, because it can be changed into another prime (231025404583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115512702281 + 115512702282.

It is an arithmetic number, because the mean of its divisors is an integer number (115512702282).

Almost surely, 2^231025404563 is an apocalyptic number.

231025404563 is a deficient number, since it is larger than the sum of its proper divisors (1).

231025404563 is an equidigital number, since it uses as much as digits as its factorization.

231025404563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 231025404563 its reverse (365404520132), we get a palindrome (596429924695).

The spelling of 231025404563 in words is "two hundred thirty-one billion, twenty-five million, four hundred four thousand, five hundred sixty-three".