2123366429 has 2 divisors, whose sum is σ = 2123366430. Its totient is φ = 2123366428.

The previous prime is 2123366353. The next prime is 2123366431. The reversal of 2123366429 is 9246633212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1173062500 + 950303929 = 34250^2 + 30827^2 .

It is a cyclic number.

It is not a de Polignac number, because 2123366429 - 2²⁴ = 2106589213 is a prime.

Together with 2123366431, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2123366392 and 2123366401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2123366449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061683214 + 1061683215.

It is an arithmetic number, because the mean of its divisors is an integer number (1061683215).

Almost surely, 2^2123366429 is an apocalyptic number.

It is an amenable number.

2123366429 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123366429 is an equidigital number, since it uses as much as digits as its factorization.

2123366429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 38.

The square root of 2123366429 is about 46080.0003146701. Note that the first 3 decimals coincide. The cubic root of 2123366429 is about 1285.3112700092.

The spelling of 2123366429 in words is "two billion, one hundred twenty-three million, three hundred sixty-six thousand, four hundred twenty-nine".