1323522231 has 8 divisors (see below), whose sum is σ = 1770933120. Its totient is φ = 879229752.

The previous prime is 1323522229. The next prime is 1323522253. The reversal of 1323522231 is 1322253231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1323522231 - 2¹ = 1323522229 is a prime.

It is a super-3 number, since 3×1323522231³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323512231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 778611 + ... + 780308.

It is an arithmetic number, because the mean of its divisors is an integer number (221366640).

Almost surely, 2^1323522231 is an apocalyptic number.

1323522231 is a deficient number, since it is larger than the sum of its proper divisors (447410889).

1323522231 is a wasteful number, since it uses less digits than its factorization.

1323522231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1559205.

The product of its digits is 2160, while the sum is 24.

The square root of 1323522231 is about 36380.2450651449. The cubic root of 1323522231 is about 1097.9361386675.

Adding to 1323522231 its reverse (1322253231), we get a palindrome (2645775462).

The spelling of 1323522231 in words is "one billion, three hundred twenty-three million, five hundred twenty-two thousand, two hundred thirty-one".