263433421127 has 2 divisors, whose sum is σ = 263433421128. Its totient is φ = 263433421126.

The previous prime is 263433421123. The next prime is 263433421187. The reversal of 263433421127 is 721124334362.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 263433421127 - 2² = 263433421123 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263433421123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131716710563 + 131716710564.

It is an arithmetic number, because the mean of its divisors is an integer number (131716710564).

Almost surely, 2^263433421127 is an apocalyptic number.

263433421127 is a deficient number, since it is larger than the sum of its proper divisors (1).

263433421127 is an equidigital number, since it uses as much as digits as its factorization.

263433421127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 38.

Adding to 263433421127 its reverse (721124334362), we get a palindrome (984557755489).

The spelling of 263433421127 in words is "two hundred sixty-three billion, four hundred thirty-three million, four hundred twenty-one thousand, one hundred twenty-seven".