1323011323320 has 64 divisors (see below), whose sum is σ = 3969301220640. Its totient is φ = 352779264000.

The previous prime is 1323011323303. The next prime is 1323011323351. The reversal of 1323011323320 is 233231103231.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1455720 + ... + 2182920.

Almost surely, 2^{1323011323320} is an apocalyptic number.

1323011323320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323011323320 is an abundant number, since it is smaller than the sum of its proper divisors (2646289897320).

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

1323011323320 is a wasteful number, since it uses less digits than its factorization.

1323011323320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742376 (or 742372 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1323011323320 its reverse (233231103231), we get a palindrome (1556242426551).

The spelling of 1323011323320 in words is "one trillion, three hundred twenty-three billion, eleven million, three hundred twenty-three thousand, three hundred twenty".