2102021325 has 36 divisors (see below), whose sum is σ = 3777341568. Its totient is φ = 1117389600.

The previous prime is 2102021303. The next prime is 2102021329. The reversal of 2102021325 is 5231202012.

It is not a de Polignac number, because 2102021325 - 2¹¹ = 2102019277 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2102021298 and 2102021307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102021329) 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 35 ways as a sum of consecutive naturals, for example, 53860 + ... + 84290.

Almost surely, 2^2102021325 is an apocalyptic number.

2102021325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2102021325 is a deficient number, since it is larger than the sum of its proper divisors (1675320243).

2102021325 is a wasteful number, since it uses less digits than its factorization.

2102021325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30754 (or 30746 counting only the distinct ones).

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

The square root of 2102021325 is about 45847.8061089078. The cubic root of 2102021325 is about 1280.9899009601.

Adding to 2102021325 its reverse (5231202012), we get a palindrome (7333223337).

The spelling of 2102021325 in words is "two billion, one hundred two million, twenty-one thousand, three hundred twenty-five".