1323434343231 has 432 divisors, whose sum is σ = 2728092110016. Its totient is φ = 601078579200.

The previous prime is 1323434343169. The next prime is 1323434343239.

1323434343231 is a `hidden beast` number, since 1 + 3 + 2 + 343 + 43 + 43 + 231 = 666.

1323434343231 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1323434343231 - 2⁶ = 1323434343167 is a prime.

It is a super-2 number, since 2×1323434343231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323434343239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 13643652975 + ... + 13643653071.

Almost surely, 2^{1323434343231} is an apocalyptic number.

1323434343231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1323434343231 is an abundant number, since it is smaller than the sum of its proper divisors (1404657766785).

1323434343231 is a wasteful number, since it uses less digits than its factorization.

1323434343231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304 (or 229 counting only the distinct ones).

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

The spelling of 1323434343231 in words is "one trillion, three hundred twenty-three billion, four hundred thirty-four million, three hundred forty-three thousand, two hundred thirty-one".