1323243132011 has 4 divisors (see below), whose sum is σ = 1392887507400. Its totient is φ = 1253598756624.

The previous prime is 1323243131953. The next prime is 1323243132019. The reversal of 1323243132011 is 1102313423231.

It is a happy number.

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 1323243132011 - 2³⁴ = 1306063262827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323243132019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34822187666 + ... + 34822187703.

It is an arithmetic number, because the mean of its divisors is an integer number (348221876850).

Almost surely, 2^{1323243132011} is an apocalyptic number.

1323243132011 is a deficient number, since it is larger than the sum of its proper divisors (69644375389).

1323243132011 is an equidigital number, since it uses as much as digits as its factorization.

1323243132011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69644375388.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 1323243132011 its reverse (1102313423231), we get a palindrome (2425556555242).

The spelling of 1323243132011 in words is "one trillion, three hundred twenty-three billion, two hundred forty-three million, one hundred thirty-two thousand, eleven".