20000330129 has 8 divisors (see below), whose sum is σ = 21539966952. Its totient is φ = 18460857600.

The previous prime is 20000330123. The next prime is 20000330143. The reversal of 20000330129 is 92103300002.

It can be written as a sum of positive squares in 4 ways, for example, as 1532879104 + 18467451025 = 39152^2 + 135895^2 .

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 20000330129 - 2¹⁶ = 20000264593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20000330129.

It is not an unprimeable number, because it can be changed into a prime (20000330123) 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, 349097 + ... + 402329.

It is an arithmetic number, because the mean of its divisors is an integer number (2692495869).

Almost surely, 2^20000330129 is an apocalyptic number.

It is an amenable number.

20000330129 is a deficient number, since it is larger than the sum of its proper divisors (1539636823).

20000330129 is a wasteful number, since it uses less digits than its factorization.

20000330129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82147.

The product of its (nonzero) digits is 324, while the sum is 20.

The spelling of 20000330129 in words is "twenty billion, three hundred thirty thousand, one hundred twenty-nine".