126312423 has 4 divisors (see below), whose sum is σ = 168416568. Its totient is φ = 84208280.

The previous prime is 126312379. The next prime is 126312443. The reversal of 126312423 is 324213621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324213621 = 3 ⋅108071207.

It is a cyclic number.

It is not a de Polignac number, because 126312423 - 2¹⁰ = 126311399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126312393 and 126312402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126312443) 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 in 3 ways as a sum of consecutive naturals, for example, 21052068 + ... + 21052073.

It is an arithmetic number, because the mean of its divisors is an integer number (42104142).

Almost surely, 2^126312423 is an apocalyptic number.

126312423 is a deficient number, since it is larger than the sum of its proper divisors (42104145).

126312423 is an equidigital number, since it uses as much as digits as its factorization.

126312423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42104144.

The product of its digits is 1728, while the sum is 24.

The square root of 126312423 is about 11238.8799708868. The cubic root of 126312423 is about 501.7438085267.

The spelling of 126312423 in words is "one hundred twenty-six million, three hundred twelve thousand, four hundred twenty-three".