1323131332331 has 8 divisors (see below), whose sum is σ = 1409557452624. Its totient is φ = 1237660197120.

The previous prime is 1323131332301. The next prime is 1323131332333. The reversal of 1323131332331 is 1332331313231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1323131332331 is a prime.

It is a super-2 number, since 2×1323131332331² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1323131332294 and 1323131332303.

It is not an unprimeable number, because it can be changed into a prime (1323131332333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238743410 + ... + 238748951.

It is an arithmetic number, because the mean of its divisors is an integer number (176194681578).

Almost surely, 2^{1323131332331} is an apocalyptic number.

1323131332331 is a deficient number, since it is larger than the sum of its proper divisors (86426120293).

1323131332331 is a wasteful number, since it uses less digits than its factorization.

1323131332331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477492541.

The product of its digits is 8748, while the sum is 29.

Adding to 1323131332331 its reverse (1332331313231), we get a palindrome (2655462645562).

The spelling of 1323131332331 in words is "one trillion, three hundred twenty-three billion, one hundred thirty-one million, three hundred thirty-two thousand, three hundred thirty-one".