1331203213323 has 12 divisors (see below), whose sum is σ = 2024051669640. Its totient is φ = 840759924096.

The previous prime is 1331203213259. The next prime is 1331203213331. The reversal of 1331203213323 is 3233123021331.

1331203213323 is a `hidden beast` number, since 1 + 3 + 3 + 1 + 2 + 0 + 321 + 332 + 3 = 666.

It is not a de Polignac number, because 1331203213323 - 2⁶ = 1331203213259 is a prime.

It is a super-2 number, since 2×1331203213323² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1331203213393) 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 11 ways as a sum of consecutive naturals, for example, 3892406886 + ... + 3892407227.

It is an arithmetic number, because the mean of its divisors is an integer number (168670972470).

Almost surely, 2^{1331203213323} is an apocalyptic number.

1331203213323 is a deficient number, since it is larger than the sum of its proper divisors (692848456317).

1331203213323 is a wasteful number, since it uses less digits than its factorization.

1331203213323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7784814138 (or 7784814135 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 1331203213323 its reverse (3233123021331), we get a palindrome (4564326234654).

The spelling of 1331203213323 in words is "one trillion, three hundred thirty-one billion, two hundred three million, two hundred thirteen thousand, three hundred twenty-three".