126304600243 has 4 divisors (see below), whose sum is σ = 126442038160. Its totient is φ = 126167162328.

The previous prime is 126304600231. The next prime is 126304600259. The reversal of 126304600243 is 342006403621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126304600243 - 2²⁹ = 125767729331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126304670243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68717580 + ... + 68719417.

It is an arithmetic number, because the mean of its divisors is an integer number (31610509540).

Almost surely, 2^126304600243 is an apocalyptic number.

126304600243 is a deficient number, since it is larger than the sum of its proper divisors (137437917).

126304600243 is an equidigital number, since it uses as much as digits as its factorization.

126304600243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137437916.

The product of its (nonzero) digits is 20736, while the sum is 31.

The spelling of 126304600243 in words is "one hundred twenty-six billion, three hundred four million, six hundred thousand, two hundred forty-three".