1323111011320 has 64 divisors (see below), whose sum is σ = 3413897565120. Its totient is φ = 452089780224.

The previous prime is 1323111011303. The next prime is 1323111011363. The reversal of 1323111011320 is 231101113231.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7981777 + ... + 8145856.

It is an arithmetic number, because the mean of its divisors is an integer number (53342149455).

Almost surely, 2^{1323111011320} is an apocalyptic number.

1323111011320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323111011320 is an abundant number, since it is smaller than the sum of its proper divisors (2090786553800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1323111011320 is a wasteful number, since it uses less digits than its factorization.

1323111011320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16127944 (or 16127940 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1323111011320 its reverse (231101113231), we get a palindrome (1554212124551).

The spelling of 1323111011320 in words is "one trillion, three hundred twenty-three billion, one hundred eleven million, eleven thousand, three hundred twenty".