102025321 has 4 divisors (see below), whose sum is σ = 102133332. Its totient is φ = 101917312.

The previous prime is 102025241. The next prime is 102025333. The reversal of 102025321 is 123520201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48149721 + 53875600 = 6939^2 + 7340^2 .

It is a cyclic number.

It is not a de Polignac number, because 102025321 - 2¹³ = 102017129 is a prime.

It is a super-2 number, since 2×102025321² = 20818332250306082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102025295 and 102025304.

It is not an unprimeable number, because it can be changed into a prime (102025361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52576 + ... + 54481.

It is an arithmetic number, because the mean of its divisors is an integer number (25533333).

Almost surely, 2^102025321 is an apocalyptic number.

It is an amenable number.

102025321 is a deficient number, since it is larger than the sum of its proper divisors (108011).

102025321 is an equidigital number, since it uses as much as digits as its factorization.

102025321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108010.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 102025321 is about 10100.7584368700. The cubic root of 102025321 is about 467.2715323935.

Adding to 102025321 its reverse (123520201), we get a palindrome (225545522).

The spelling of 102025321 in words is "one hundred two million, twenty-five thousand, three hundred twenty-one".