12427946123 has 2 divisors, whose sum is σ = 12427946124. Its totient is φ = 12427946122.

The previous prime is 12427946107. The next prime is 12427946149. The reversal of 12427946123 is 32164972421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12427946123 - 2⁴ = 12427946107 is a prime.

It is a super-2 number, since 2×12427946123² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12427946183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6213973061 + 6213973062.

It is an arithmetic number, because the mean of its divisors is an integer number (6213973062).

Almost surely, 2^12427946123 is an apocalyptic number.

12427946123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12427946123 is an equidigital number, since it uses as much as digits as its factorization.

12427946123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 41.

The spelling of 12427946123 in words is "twelve billion, four hundred twenty-seven million, nine hundred forty-six thousand, one hundred twenty-three".