2021430129 has 8 divisors (see below), whose sum is σ = 2757920352. Its totient is φ = 1316280000.

The previous prime is 2021430127. The next prime is 2021430161. The reversal of 2021430129 is 9210341202.

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

It is not a de Polignac number, because 2021430129 - 2¹ = 2021430127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2021430099 and 2021430108.

It is not an unprimeable number, because it can be changed into a prime (2021430127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7834872 + ... + 7835129.

It is an arithmetic number, because the mean of its divisors is an integer number (344740044).

Almost surely, 2^2021430129 is an apocalyptic number.

It is an amenable number.

2021430129 is a deficient number, since it is larger than the sum of its proper divisors (736490223).

2021430129 is a wasteful number, since it uses less digits than its factorization.

2021430129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15670047.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 2021430129 is about 44960.3172697880. The cubic root of 2021430129 is about 1264.4051172419.

The spelling of 2021430129 in words is "two billion, twenty-one million, four hundred thirty thousand, one hundred twenty-nine".