2021430051 has 24 divisors (see below), whose sum is σ = 3016890240. Its totient is φ = 1302912000.

The previous prime is 2021430031. The next prime is 2021430053. The reversal of 2021430051 is 1500341202.

It is not a de Polignac number, because 2021430051 - 2⁷ = 2021429923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2021430053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 360195 + ... + 365763.

It is an arithmetic number, because the mean of its divisors is an integer number (125703760).

Almost surely, 2^2021430051 is an apocalyptic number.

2021430051 is a deficient number, since it is larger than the sum of its proper divisors (995460189).

2021430051 is a wasteful number, since it uses less digits than its factorization.

2021430051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6907 (or 6904 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2021430051 is about 44960.3164023564. The cubic root of 2021430051 is about 1264.4051009789.

Adding to 2021430051 its reverse (1500341202), we get a palindrome (3521771253).

The spelling of 2021430051 in words is "two billion, twenty-one million, four hundred thirty thousand, fifty-one".