20431010129 has 8 divisors (see below), whose sum is σ = 20747312040. Its totient is φ = 20116944000.

The previous prime is 20431010107. The next prime is 20431010143. The reversal of 20431010129 is 92101013402.

It can be written as a sum of positive squares in 4 ways, for example, as 3440409025 + 16990601104 = 58655^2 + 130348^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20431010129 - 2²⁴ = 20414232913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20431010179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540524 + ... + 577085.

It is an arithmetic number, because the mean of its divisors is an integer number (2593414005).

Almost surely, 2^20431010129 is an apocalyptic number.

It is an amenable number.

20431010129 is a deficient number, since it is larger than the sum of its proper divisors (316301911).

20431010129 is a wasteful number, since it uses less digits than its factorization.

20431010129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117891.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 20431010129 in words is "twenty billion, four hundred thirty-one million, ten thousand, one hundred twenty-nine".