1323031333020 has 96 divisors (see below), whose sum is σ = 3774984611328. Its totient is φ = 346096488192.

The previous prime is 1323031332989. The next prime is 1323031333021. The reversal of 1323031333020 is 203331303231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323031333021) 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, 22316257 + ... + 22375463.

It is an arithmetic number, because the mean of its divisors is an integer number (39322756368).

Almost surely, 2^{1323031333020} is an apocalyptic number.

1323031333020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1323031333020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1887492305664).

1323031333020 is an abundant number, since it is smaller than the sum of its proper divisors (2451953278308).

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

1323031333020 is a wasteful number, since it uses less digits than its factorization.

1323031333020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66299 (or 66297 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 1323031333020 its reverse (203331303231), we get a palindrome (1526362636251).

The spelling of 1323031333020 in words is "one trillion, three hundred twenty-three billion, thirty-one million, three hundred thirty-three thousand, twenty".