1323143292 has 12 divisors (see below), whose sum is σ = 3087334376. Its totient is φ = 441047760.

The previous prime is 1323143279. The next prime is 1323143293. The reversal of 1323143292 is 2923413231.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323143293) 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 3 ways as a sum of consecutive naturals, for example, 55130959 + ... + 55130982.

Almost surely, 2^1323143292 is an apocalyptic number.

1323143292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1323143292 is an abundant number, since it is smaller than the sum of its proper divisors (1764191084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1323143292 is a wasteful number, since it uses less digits than its factorization.

1323143292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110261948 (or 110261946 counting only the distinct ones).

The product of its digits is 7776, while the sum is 30.

The square root of 1323143292 is about 36375.0366597753. The cubic root of 1323143292 is about 1097.8313449271.

The spelling of 1323143292 in words is "one billion, three hundred twenty-three million, one hundred forty-three thousand, two hundred ninety-two".