12126177823 has 2 divisors, whose sum is σ = 12126177824. Its totient is φ = 12126177822.

The previous prime is 12126177799. The next prime is 12126177851. The reversal of 12126177823 is 32877162121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12126177823 - 2¹³ = 12126169631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12126177883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6063088911 + 6063088912.

It is an arithmetic number, because the mean of its divisors is an integer number (6063088912).

Almost surely, 2^12126177823 is an apocalyptic number.

12126177823 is a deficient number, since it is larger than the sum of its proper divisors (1).

12126177823 is an equidigital number, since it uses as much as digits as its factorization.

12126177823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 40.

The spelling of 12126177823 in words is "twelve billion, one hundred twenty-six million, one hundred seventy-seven thousand, eight hundred twenty-three".