126701723443 has 2 divisors, whose sum is σ = 126701723444. Its totient is φ = 126701723442.

The previous prime is 126701723437. The next prime is 126701723513. The reversal of 126701723443 is 344327107621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126701723443 - 2²⁵ = 126668169011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126701723396 and 126701723405.

It is not a weakly prime, because it can be changed into another prime (126701723243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63350861721 + 63350861722.

It is an arithmetic number, because the mean of its divisors is an integer number (63350861722).

Almost surely, 2^126701723443 is an apocalyptic number.

126701723443 is a deficient number, since it is larger than the sum of its proper divisors (1).

126701723443 is an equidigital number, since it uses as much as digits as its factorization.

126701723443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 40.

The spelling of 126701723443 in words is "one hundred twenty-six billion, seven hundred one million, seven hundred twenty-three thousand, four hundred forty-three".