1323131122012 has 12 divisors (see below), whose sum is σ = 2646262244080. Its totient is φ = 567056195136.

The previous prime is 1323131122009. The next prime is 1323131122043. The reversal of 1323131122012 is 2102211313231.

1323131122012 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23627341437 + ... + 23627341492.

Almost surely, 2^{1323131122012} is an apocalyptic number.

It is an amenable number.

1323131122012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1323131122012 is a wasteful number, since it uses less digits than its factorization.

1323131122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47254682940 (or 47254682938 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1323131122012 its reverse (2102211313231), we get a palindrome (3425342435243).

The spelling of 1323131122012 in words is "one trillion, three hundred twenty-three billion, one hundred thirty-one million, one hundred twenty-two thousand, twelve".