126322635631 has 2 divisors, whose sum is σ = 126322635632. Its totient is φ = 126322635630.

The previous prime is 126322635629. The next prime is 126322635679. The reversal of 126322635631 is 136536223621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126322635631 - 2¹ = 126322635629 is a prime.

It is a super-2 number, since 2×126322635631² (a number of 23 digits) contains 22 as substring.

Together with 126322635629, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126322635331) 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, 63161317815 + 63161317816.

It is an arithmetic number, because the mean of its divisors is an integer number (63161317816).

Almost surely, 2^126322635631 is an apocalyptic number.

126322635631 is a deficient number, since it is larger than the sum of its proper divisors (1).

126322635631 is an equidigital number, since it uses as much as digits as its factorization.

126322635631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 40.

The spelling of 126322635631 in words is "one hundred twenty-six billion, three hundred twenty-two million, six hundred thirty-five thousand, six hundred thirty-one".