2120430525 has 24 divisors (see below), whose sum is σ = 3507989760. Its totient is φ = 1130183040.

The previous prime is 2120430523. The next prime is 2120430593. The reversal of 2120430525 is 5250340212.

It is not a de Polignac number, because 2120430525 - 2¹ = 2120430523 is a prime.

It is a super-2 number, since 2×2120430525² = 8992451222703551250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2120430495 and 2120430504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120430523) 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, 123889 + ... + 139961.

It is an arithmetic number, because the mean of its divisors is an integer number (146166240).

Almost surely, 2^2120430525 is an apocalyptic number.

2120430525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2120430525 is a deficient number, since it is larger than the sum of its proper divisors (1387559235).

2120430525 is a wasteful number, since it uses less digits than its factorization.

2120430525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17845 (or 17840 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2120430525 is about 46048.1326982973. The cubic root of 2120430525 is about 1284.7186118965.

Adding to 2120430525 its reverse (5250340212), we get a palindrome (7370770737).

The spelling of 2120430525 in words is "two billion, one hundred twenty million, four hundred thirty thousand, five hundred twenty-five".