2221031323 has 16 divisors (see below), whose sum is σ = 2628000000. Its totient is φ = 1836590112.

The previous prime is 2221031311. The next prime is 2221031327. The reversal of 2221031323 is 3231301222.

2221031323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2221031323 - 2²⁹ = 1684160411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2221031323.

It is not an unprimeable number, because it can be changed into a prime (2221031327) 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, 292428 + ... + 299926.

It is an arithmetic number, because the mean of its divisors is an integer number (164250000).

Almost surely, 2^2221031323 is an apocalyptic number.

2221031323 is a deficient number, since it is larger than the sum of its proper divisors (406968677).

2221031323 is a wasteful number, since it uses less digits than its factorization.

2221031323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8994.

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

The square root of 2221031323 is about 47127.8189926078. The cubic root of 2221031323 is about 1304.7227280941.

Adding to 2221031323 its reverse (3231301222), we get a palindrome (5452332545).

The spelling of 2221031323 in words is "two billion, two hundred twenty-one million, thirty-one thousand, three hundred twenty-three".