1323004343231 has 4 divisors (see below), whose sum is σ = 1323231396312. Its totient is φ = 1322777290152.

The previous prime is 1323004343207. The next prime is 1323004343237. The reversal of 1323004343231 is 1323434003231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1323004343231 - 2²² = 1323000148927 is a prime.

It is a super-2 number, since 2×1323004343231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1323004343194 and 1323004343203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323004343237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113517800 + ... + 113529453.

It is an arithmetic number, because the mean of its divisors is an integer number (330807849078).

Almost surely, 2^{1323004343231} is an apocalyptic number.

1323004343231 is a deficient number, since it is larger than the sum of its proper divisors (227053081).

1323004343231 is an equidigital number, since it uses as much as digits as its factorization.

1323004343231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227053080.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 1323004343231 its reverse (1323434003231), we get a palindrome (2646438346462).

The spelling of 1323004343231 in words is "one trillion, three hundred twenty-three billion, four million, three hundred forty-three thousand, two hundred thirty-one".