2021430125 has 48 divisors (see below), whose sum is σ = 2980411200. Its totient is φ = 1356888000.

The previous prime is 2021430119. The next prime is 2021430127. The reversal of 2021430125 is 5210341202.

It is not a de Polignac number, because 2021430125 - 2¹⁰ = 2021429101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2021430097 and 2021430106.

It is a congruent number.

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

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 228026 + ... + 236724.

It is an arithmetic number, because the mean of its divisors is an integer number (62091900).

Almost surely, 2^2021430125 is an apocalyptic number.

2021430125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2021430125 is a deficient number, since it is larger than the sum of its proper divisors (958981075).

2021430125 is a wasteful number, since it uses less digits than its factorization.

2021430125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8751 (or 8728 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2021430125 is about 44960.3172253044. The cubic root of 2021430125 is about 1264.4051164079.

Adding to 2021430125 its reverse (5210341202), we get a palindrome (7231771327).

The spelling of 2021430125 in words is "two billion, twenty-one million, four hundred thirty thousand, one hundred twenty-five".