4023221331 has 4 divisors (see below), whose sum is σ = 5364295112. Its totient is φ = 2682147552.

The previous prime is 4023221311. The next prime is 4023221339. The reversal of 4023221331 is 1331223204.

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

It is not a de Polignac number, because 4023221331 - 2⁵ = 4023221299 is a prime.

It is a super-2 number, since 2×4023221331² = 32372619756426823122, 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 = 4023221298 and 4023221307.

It is not an unprimeable number, because it can be changed into a prime (4023221339) 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, 670536886 + ... + 670536891.

It is an arithmetic number, because the mean of its divisors is an integer number (1341073778).

Almost surely, 2^4023221331 is an apocalyptic number.

4023221331 is a deficient number, since it is larger than the sum of its proper divisors (1341073781).

4023221331 is a wasteful number, since it uses less digits than its factorization.

4023221331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341073780.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 4023221331 is about 63428.8682777803. The cubic root of 4023221331 is about 1590.4669239024.

Adding to 4023221331 its reverse (1331223204), we get a palindrome (5354444535).

The spelling of 4023221331 in words is "four billion, twenty-three million, two hundred twenty-one thousand, three hundred thirty-one".