2043431129 has 2 divisors, whose sum is σ = 2043431130. Its totient is φ = 2043431128.

The previous prime is 2043431101. The next prime is 2043431167. The reversal of 2043431129 is 9211343402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1562067529 + 481363600 = 39523^2 + 21940^2 .

It is a cyclic number.

It is not a de Polignac number, because 2043431129 - 2²⁰ = 2042382553 is a prime.

It is a super-2 number, since 2×2043431129² = 8351221557932429282, which contains 22 as substring.

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 (2043431029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021715564 + 1021715565.

It is an arithmetic number, because the mean of its divisors is an integer number (1021715565).

Almost surely, 2^2043431129 is an apocalyptic number.

It is an amenable number.

2043431129 is a deficient number, since it is larger than the sum of its proper divisors (1).

2043431129 is an equidigital number, since it uses as much as digits as its factorization.

2043431129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 2043431129 is about 45204.3264411715. The cubic root of 2043431129 is about 1268.9757855056.

The spelling of 2043431129 in words is "two billion, forty-three million, four hundred thirty-one thousand, one hundred twenty-nine".