1323331434243 has 48 divisors (see below), whose sum is σ = 2416172764096. Its totient is φ = 679155528960.

The previous prime is 1323331434223. The next prime is 1323331434251. The reversal of 1323331434243 is 3424341333231.

1323331434243 is a `hidden beast` number, since 13 + 233 + 31 + 4 + 342 + 43 = 666.

It is not a de Polignac number, because 1323331434243 - 2⁸ = 1323331433987 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1323331434198 and 1323331434207.

It is not an unprimeable number, because it can be changed into a prime (1323331434223) 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 47 ways as a sum of consecutive naturals, for example, 21804688 + ... + 21865293.

Almost surely, 2^{1323331434243} is an apocalyptic number.

1323331434243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1323331434243 is a deficient number, since it is larger than the sum of its proper divisors (1092841329853).

1323331434243 is a wasteful number, since it uses less digits than its factorization.

1323331434243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43670044 (or 43670041 counting only the distinct ones).

The product of its digits is 186624, while the sum is 36.

Adding to 1323331434243 its reverse (3424341333231), we get a palindrome (4747672767474).

The spelling of 1323331434243 in words is "one trillion, three hundred twenty-three billion, three hundred thirty-one million, four hundred thirty-four thousand, two hundred forty-three".