20331341 has 4 divisors (see below), whose sum is σ = 20676000. Its totient is φ = 19986684.

The previous prime is 20331329. The next prime is 20331373. The reversal of 20331341 is 14313302.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20331341 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331301) 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, 172241 + ... + 172358.

It is an arithmetic number, because the mean of its divisors is an integer number (5169000).

Almost surely, 2^20331341 is an apocalyptic number.

It is an amenable number.

20331341 is a deficient number, since it is larger than the sum of its proper divisors (344659).

20331341 is an equidigital number, since it uses as much as digits as its factorization.

20331341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344658.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 20331341 is about 4509.0288311343. The cubic root of 20331341 is about 272.9325554476.

Adding to 20331341 its reverse (14313302), we get a palindrome (34644643).

The spelling of 20331341 in words is "twenty million, three hundred thirty-one thousand, three hundred forty-one".