12129965803 has 2 divisors, whose sum is σ = 12129965804. Its totient is φ = 12129965802.

The previous prime is 12129965797. The next prime is 12129965821. The reversal of 12129965803 is 30856992121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12129965803 is a prime.

It is not a weakly prime, because it can be changed into another prime (12129965863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6064982901 + 6064982902.

It is an arithmetic number, because the mean of its divisors is an integer number (6064982902).

Almost surely, 2^12129965803 is an apocalyptic number.

12129965803 is a deficient number, since it is larger than the sum of its proper divisors (1).

12129965803 is an equidigital number, since it uses as much as digits as its factorization.

12129965803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 12129965803 in words is "twelve billion, one hundred twenty-nine million, nine hundred sixty-five thousand, eight hundred three".