1321132323 has 32 divisors (see below), whose sum is σ = 2138895360. Its totient is φ = 709188480.

The previous prime is 1321132321. The next prime is 1321132333. The reversal of 1321132323 is 3232311231.

It is not a de Polignac number, because 1321132323 - 2¹ = 1321132321 is a prime.

It is a super-2 number, since 2×1321132323² = 3490781229750752658, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1321132323.

It is not an unprimeable number, because it can be changed into a prime (1321132321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6783 + ... + 51848.

It is an arithmetic number, because the mean of its divisors is an integer number (66840480).

Almost surely, 2^1321132323 is an apocalyptic number.

1321132323 is a deficient number, since it is larger than the sum of its proper divisors (817763037).

1321132323 is a wasteful number, since it uses less digits than its factorization.

1321132323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58707.

The product of its digits is 648, while the sum is 21.

The square root of 1321132323 is about 36347.3839911485. The cubic root of 1321132323 is about 1097.2748861231.

Adding to 1321132323 its reverse (3232311231), we get a palindrome (4553443554).

The spelling of 1321132323 in words is "one billion, three hundred twenty-one million, one hundred thirty-two thousand, three hundred twenty-three".