12129414623 has 2 divisors, whose sum is σ = 12129414624. Its totient is φ = 12129414622.

The previous prime is 12129414607. The next prime is 12129414631. The reversal of 12129414623 is 32641492121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12129414623 - 2⁴ = 12129414607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12129414653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6064707311 + 6064707312.

It is an arithmetic number, because the mean of its divisors is an integer number (6064707312).

Almost surely, 2^12129414623 is an apocalyptic number.

12129414623 is a deficient number, since it is larger than the sum of its proper divisors (1).

12129414623 is an equidigital number, since it uses as much as digits as its factorization.

12129414623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 35.

The spelling of 12129414623 in words is "twelve billion, one hundred twenty-nine million, four hundred fourteen thousand, six hundred twenty-three".