1323123413403 has 24 divisors (see below), whose sum is σ = 1943442018000. Its totient is φ = 800106926080.

The previous prime is 1323123413393. The next prime is 1323123413411. The reversal of 1323123413403 is 3043143213231.

It is not a de Polignac number, because 1323123413403 - 2⁴ = 1323123413387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1323123413473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3895998 + ... + 4221971.

It is an arithmetic number, because the mean of its divisors is an integer number (80976750750).

Almost surely, 2^{1323123413403} is an apocalyptic number.

1323123413403 is a deficient number, since it is larger than the sum of its proper divisors (620318604597).

1323123413403 is a wasteful number, since it uses less digits than its factorization.

1323123413403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8118443 (or 8118432 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 1323123413403 its reverse (3043143213231), we get a palindrome (4366266626634).

The spelling of 1323123413403 in words is "one trillion, three hundred twenty-three billion, one hundred twenty-three million, four hundred thirteen thousand, four hundred three".