42510111311263 has 2 divisors, whose sum is σ = 42510111311264. Its totient is φ = 42510111311262.

The previous prime is 42510111311191. The next prime is 42510111311281. The reversal of 42510111311263 is 36211311101524.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42510111311263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42510111311293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21255055655631 + 21255055655632.

It is an arithmetic number, because the mean of its divisors is an integer number (21255055655632).

Almost surely, 2^{42510111311263} is an apocalyptic number.

42510111311263 is a deficient number, since it is larger than the sum of its proper divisors (1).

42510111311263 is an equidigital number, since it uses as much as digits as its factorization.

42510111311263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 31.

Adding to 42510111311263 its reverse (36211311101524), we get a palindrome (78721422412787).

The spelling of 42510111311263 in words is "forty-two trillion, five hundred ten billion, one hundred eleven million, three hundred eleven thousand, two hundred sixty-three".