1322023231 has 4 divisors (see below), whose sum is σ = 1334858512. Its totient is φ = 1309187952.

The previous prime is 1322023223. The next prime is 1322023237. The reversal of 1322023231 is 1323202231.

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 1322023231 - 2³ = 1322023223 is a prime.

It is a super-2 number, since 2×1322023231² = 3495490846607358722, 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 = 1322023199 and 1322023208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322023237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6417486 + ... + 6417691.

It is an arithmetic number, because the mean of its divisors is an integer number (333714628).

Almost surely, 2^1322023231 is an apocalyptic number.

1322023231 is a deficient number, since it is larger than the sum of its proper divisors (12835281).

1322023231 is a wasteful number, since it uses less digits than its factorization.

1322023231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12835280.

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

The square root of 1322023231 is about 36359.6373881809. The cubic root of 1322023231 is about 1097.5214804768.

Adding to 1322023231 its reverse (1323202231), we get a palindrome (2645225462).

The spelling of 1322023231 in words is "one billion, three hundred twenty-two million, twenty-three thousand, two hundred thirty-one".