126943244971 has 2 divisors, whose sum is σ = 126943244972. Its totient is φ = 126943244970.

The previous prime is 126943244893. The next prime is 126943244977. The reversal of 126943244971 is 179442349621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126943244971 - 2⁹ = 126943244459 is a prime.

It is a super-2 number, since 2×126943244971² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (126943244977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63471622485 + 63471622486.

It is an arithmetic number, because the mean of its divisors is an integer number (63471622486).

Almost surely, 2^126943244971 is an apocalyptic number.

126943244971 is a deficient number, since it is larger than the sum of its proper divisors (1).

126943244971 is an equidigital number, since it uses as much as digits as its factorization.

126943244971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 52.

The spelling of 126943244971 in words is "one hundred twenty-six billion, nine hundred forty-three million, two hundred forty-four thousand, nine hundred seventy-one".