1323311623630 has 64 divisors (see below), whose sum is σ = 2513435443200. Its totient is φ = 500956968960.

The previous prime is 1323311623597. The next prime is 1323311623631. The reversal of 1323311623630 is 363261133231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323311623631) 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, 3342531 + ... + 3717409.

It is an arithmetic number, because the mean of its divisors is an integer number (39272428800).

Almost surely, 2^{1323311623630} is an apocalyptic number.

1323311623630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1323311623630 is a deficient number, since it is larger than the sum of its proper divisors (1190123819570).

1323311623630 is a wasteful number, since it uses less digits than its factorization.

1323311623630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375169.

The product of its (nonzero) digits is 34992, while the sum is 34.

Adding to 1323311623630 its reverse (363261133231), we get a palindrome (1686572756861).

The spelling of 1323311623630 in words is "one trillion, three hundred twenty-three billion, three hundred eleven million, six hundred twenty-three thousand, six hundred thirty".