20223331 has 4 divisors (see below), whose sum is σ = 20423664. Its totient is φ = 20023000.

The previous prime is 20223283. The next prime is 20223341. The reversal of 20223331 is 13332202.

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

It is a cyclic number.

It is not a de Polignac number, because 20223331 - 2¹¹ = 20221283 is a prime.

It is a super-2 number, since 2×20223331² = 817966233471122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20223341) 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, 100015 + ... + 100216.

It is an arithmetic number, because the mean of its divisors is an integer number (5105916).

Almost surely, 2^20223331 is an apocalyptic number.

20223331 is a deficient number, since it is larger than the sum of its proper divisors (200333).

20223331 is a wasteful number, since it uses less digits than its factorization.

20223331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200332.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 20223331 is about 4497.0358015030. The cubic root of 20223331 is about 272.4483800884.

Adding to 20223331 its reverse (13332202), we get a palindrome (33555533).

The spelling of 20223331 in words is "twenty million, two hundred twenty-three thousand, three hundred thirty-one".