126380429243 has 2 divisors, whose sum is σ = 126380429244. Its totient is φ = 126380429242.

The previous prime is 126380429183. The next prime is 126380429257. The reversal of 126380429243 is 342924083621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126380429243 - 2⁸ = 126380428987 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 126380429194 and 126380429203.

It is not a weakly prime, because it can be changed into another prime (126380429543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63190214621 + 63190214622.

It is an arithmetic number, because the mean of its divisors is an integer number (63190214622).

Almost surely, 2^126380429243 is an apocalyptic number.

126380429243 is a deficient number, since it is larger than the sum of its proper divisors (1).

126380429243 is an equidigital number, since it uses as much as digits as its factorization.

126380429243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 44.

The spelling of 126380429243 in words is "one hundred twenty-six billion, three hundred eighty million, four hundred twenty-nine thousand, two hundred forty-three".