100325021 has 4 divisors (see below), whose sum is σ = 103561344. Its totient is φ = 97088700.

The previous prime is 100325003. The next prime is 100325039. The reversal of 100325021 is 120523001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (100325003) and next prime (100325039).

It is a cyclic number.

It is not a de Polignac number, because 100325021 - 2¹⁸ = 100062877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100324987 and 100325005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100325051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1618115 + ... + 1618176.

It is an arithmetic number, because the mean of its divisors is an integer number (25890336).

Almost surely, 2^100325021 is an apocalyptic number.

It is an amenable number.

100325021 is a deficient number, since it is larger than the sum of its proper divisors (3236323).

100325021 is an equidigital number, since it uses as much as digits as its factorization.

100325021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3236322.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 100325021 is about 10016.2378665844. The cubic root of 100325021 is about 464.6612108119.

Adding to 100325021 its reverse (120523001), we get a palindrome (220848022).

The spelling of 100325021 in words is "one hundred million, three hundred twenty-five thousand, twenty-one".