2223031321 has 16 divisors (see below), whose sum is σ = 2568162688. Its totient is φ = 1884902400.

The previous prime is 2223031303. The next prime is 2223031381. The reversal of 2223031321 is 1231303222.

It is a cyclic number.

It is not a de Polignac number, because 2223031321 - 2¹⁷ = 2222900249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2223031381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239986 + ... + 249076.

It is an arithmetic number, because the mean of its divisors is an integer number (160510168).

Almost surely, 2^2223031321 is an apocalyptic number.

It is an amenable number.

2223031321 is a deficient number, since it is larger than the sum of its proper divisors (345131367).

2223031321 is a wasteful number, since it uses less digits than its factorization.

2223031321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9472.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2223031321 is about 47149.0330865862. The cubic root of 2223031321 is about 1305.1142369034.

Adding to 2223031321 its reverse (1231303222), we get a palindrome (3454334543).

The spelling of 2223031321 in words is "two billion, two hundred twenty-three million, thirty-one thousand, three hundred twenty-one".