1323223113231 has 32 divisors (see below), whose sum is σ = 2066321568000. Its totient is φ = 834579487584.

The previous prime is 1323223113221. The next prime is 1323223113283. The reversal of 1323223113231 is 1323113223231.

1323223113231 is a `hidden beast` number, since 1 + 3 + 2 + 3 + 22 + 311 + 323 + 1 = 666.

It is not a de Polignac number, because 1323223113231 - 2⁷ = 1323223113103 is a prime.

It is a super-2 number, since 2×1323223113231² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1323223113195 and 1323223113204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323223113221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1383441 + ... + 2135498.

It is an arithmetic number, because the mean of its divisors is an integer number (64572549000).

Almost surely, 2^{1323223113231} is an apocalyptic number.

1323223113231 is a deficient number, since it is larger than the sum of its proper divisors (743098454769).

1323223113231 is a wasteful number, since it uses less digits than its factorization.

1323223113231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3519700 (or 3519694 counting only the distinct ones).

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

Adding to 1323223113231 its reverse (1323113223231), we get a palindrome (2646336336462).

The spelling of 1323223113231 in words is "one trillion, three hundred twenty-three billion, two hundred twenty-three million, one hundred thirteen thousand, two hundred thirty-one".