1323203312312 has 16 divisors (see below), whose sum is σ = 2835435669360. Its totient is φ = 567087133824.

The previous prime is 1323203312311. The next prime is 1323203312339. The reversal of 1323203312312 is 2132133023231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323203312311) 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, 11814315233 + ... + 11814315344.

It is an arithmetic number, because the mean of its divisors is an integer number (177214729335).

Almost surely, 2^{1323203312312} is an apocalyptic number.

It is an amenable number.

1323203312312 is an abundant number, since it is smaller than the sum of its proper divisors (1512232357048).

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

1323203312312 is a wasteful number, since it uses less digits than its factorization.

1323203312312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23628630590 (or 23628630586 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 1323203312312 its reverse (2132133023231), we get a palindrome (3455336335543).

The spelling of 1323203312312 in words is "one trillion, three hundred twenty-three billion, two hundred three million, three hundred twelve thousand, three hundred twelve".