20082321 has 36 divisors (see below), whose sum is σ = 35248512. Its totient is φ = 10790784.

The previous prime is 20082319. The next prime is 20082323. The reversal of 20082321 is 12328002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20082319) and next prime (20082323).

It is not a de Polignac number, because 20082321 - 2¹ = 20082319 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20082294 and 20082303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20082323) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17656 + ... + 18758.

Almost surely, 2^20082321 is an apocalyptic number.

20082321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20082321 is a deficient number, since it is larger than the sum of its proper divisors (15166191).

20082321 is a wasteful number, since it uses less digits than its factorization.

20082321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150 (or 1130 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 20082321 is about 4481.3302712476. The cubic root of 20082321 is about 271.8136744757.

The spelling of 20082321 in words is "twenty million, eighty-two thousand, three hundred twenty-one".