1323311623629 has 32 divisors (see below), whose sum is σ = 1924356881280. Its totient is φ = 805990735872.

The previous prime is 1323311623597. The next prime is 1323311623631. The reversal of 1323311623629 is 9263261133231.

It is not a de Polignac number, because 1323311623629 - 2⁵ = 1323311623597 is a prime.

It is a super-2 number, since 2×1323311623629² (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 (1323311623639) 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, 2538052 + ... + 3014685.

It is an arithmetic number, because the mean of its divisors is an integer number (60136152540).

Almost surely, 2^{1323311623629} is an apocalyptic number.

1323311623629 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1323311623629 is a deficient number, since it is larger than the sum of its proper divisors (601045257651).

1323311623629 is a wasteful number, since it uses less digits than its factorization.

1323311623629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5552909.

The product of its digits is 209952, while the sum is 42.

The spelling of 1323311623629 in words is "one trillion, three hundred twenty-three billion, three hundred eleven million, six hundred twenty-three thousand, six hundred twenty-nine".