4202423129 has 2 divisors, whose sum is σ = 4202423130. Its totient is φ = 4202423128.

The previous prime is 4202423107. The next prime is 4202423161. The reversal of 4202423129 is 9213242024.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2779398400 + 1423024729 = 52720^2 + 37723^2 .

It is a cyclic number.

It is not a de Polignac number, because 4202423129 - 2²⁰ = 4201374553 is a prime.

It is not a weakly prime, because it can be changed into another prime (4202428129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2101211564 + 2101211565.

It is an arithmetic number, because the mean of its divisors is an integer number (2101211565).

Almost surely, 2^4202423129 is an apocalyptic number.

It is an amenable number.

4202423129 is a deficient number, since it is larger than the sum of its proper divisors (1).

4202423129 is an equidigital number, since it uses as much as digits as its factorization.

4202423129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 4202423129 is about 64826.0991345307. The cubic root of 4202423129 is about 1613.7388677809.

The spelling of 4202423129 in words is "four billion, two hundred two million, four hundred twenty-three thousand, one hundred twenty-nine".