4311239129 has 2 divisors, whose sum is σ = 4311239130. Its totient is φ = 4311239128.

The previous prime is 4311239081. The next prime is 4311239147. The reversal of 4311239129 is 9219321134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2691015625 + 1620223504 = 51875^2 + 40252^2 .

It is a cyclic number.

It is not a de Polignac number, because 4311239129 - 2²⁰ = 4310190553 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4311239189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2155619564 + 2155619565.

It is an arithmetic number, because the mean of its divisors is an integer number (2155619565).

Almost surely, 2^4311239129 is an apocalyptic number.

It is an amenable number.

4311239129 is a deficient number, since it is larger than the sum of its proper divisors (1).

4311239129 is an equidigital number, since it uses as much as digits as its factorization.

4311239129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 35.

The square root of 4311239129 is about 65660.0268732811. The cubic root of 4311239129 is about 1627.5488682773.

The spelling of 4311239129 in words is "four billion, three hundred eleven million, two hundred thirty-nine thousand, one hundred twenty-nine".