126312049631 has 2 divisors, whose sum is σ = 126312049632. Its totient is φ = 126312049630.

The previous prime is 126312049621. The next prime is 126312049667. The reversal of 126312049631 is 136940213621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126312049631 - 2¹⁴ = 126312033247 is a prime.

It is a super-2 number, since 2×126312049631² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126312049621) 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, 63156024815 + 63156024816.

It is an arithmetic number, because the mean of its divisors is an integer number (63156024816).

Almost surely, 2^126312049631 is an apocalyptic number.

126312049631 is a deficient number, since it is larger than the sum of its proper divisors (1).

126312049631 is an equidigital number, since it uses as much as digits as its factorization.

126312049631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 38.

The spelling of 126312049631 in words is "one hundred twenty-six billion, three hundred twelve million, forty-nine thousand, six hundred thirty-one".