1331121232323 has 6 divisors (see below), whose sum is σ = 1922730668924. Its totient is φ = 887414154876.

The previous prime is 1331121232289. The next prime is 1331121232327. The reversal of 1331121232323 is 3232321211331.

1331121232323 is a `hidden beast` number, since 1 + 3 + 311 + 2 + 1 + 2 + 323 + 23 = 666.

It is not a de Polignac number, because 1331121232323 - 2¹⁰ = 1331121231299 is a prime.

It is a super-2 number, since 2×1331121232323² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331121232327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73951179565 + ... + 73951179582.

Almost surely, 2^{1331121232323} is an apocalyptic number.

1331121232323 is a deficient number, since it is larger than the sum of its proper divisors (591609436601).

1331121232323 is a wasteful number, since it uses less digits than its factorization.

1331121232323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147902359153 (or 147902359150 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

Adding to 1331121232323 its reverse (3232321211331), we get a palindrome (4563442443654).

The spelling of 1331121232323 in words is "one trillion, three hundred thirty-one billion, one hundred twenty-one million, two hundred thirty-two thousand, three hundred twenty-three".