263220043410631 has 2 divisors, whose sum is σ = 263220043410632. Its totient is φ = 263220043410630.

The previous prime is 263220043410613. The next prime is 263220043410673. The reversal of 263220043410631 is 136014340022362.

Together with previous prime (263220043410613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-263220043410631 is a prime.

It is a super-2 number, since 2×263220043410631² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263220043410031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131610021705315 + 131610021705316.

It is an arithmetic number, because the mean of its divisors is an integer number (131610021705316).

Almost surely, 2^{263220043410631} is an apocalyptic number.

263220043410631 is a deficient number, since it is larger than the sum of its proper divisors (1).

263220043410631 is an equidigital number, since it uses as much as digits as its factorization.

263220043410631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 37.

Adding to 263220043410631 its reverse (136014340022362), we get a palindrome (399234383432993).

The spelling of 263220043410631 in words is "two hundred sixty-three trillion, two hundred twenty billion, forty-three million, four hundred ten thousand, six hundred thirty-one".