1323231210011 has 4 divisors (see below), whose sum is σ = 1323241752024. Its totient is φ = 1323220668000.

The previous prime is 1323231209969. The next prime is 1323231210127. The reversal of 1323231210011 is 1100121323231.

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 1323231210011 - 2³⁰ = 1322157468187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323231290011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5080430 + ... + 5334531.

It is an arithmetic number, because the mean of its divisors is an integer number (330810438006).

Almost surely, 2^{1323231210011} is an apocalyptic number.

1323231210011 is a deficient number, since it is larger than the sum of its proper divisors (10542013).

1323231210011 is a wasteful number, since it uses less digits than its factorization.

1323231210011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10542012.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1323231210011 its reverse (1100121323231), we get a palindrome (2423352533242).

The spelling of 1323231210011 in words is "one trillion, three hundred twenty-three billion, two hundred thirty-one million, two hundred ten thousand, eleven".