1323031203120 has 160 divisors (see below), whose sum is σ = 4550086275840. Its totient is φ = 315298616320.

The previous prime is 1323031203037. The next prime is 1323031203139. The reversal of 1323031203120 is 213021303231.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4091259 + ... + 4402778.

It is an arithmetic number, because the mean of its divisors is an integer number (28438039224).

Almost surely, 2^{1323031203120} is an apocalyptic number.

1323031203120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323031203120 is an abundant number, since it is smaller than the sum of its proper divisors (3227055072720).

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

1323031203120 is a wasteful number, since it uses less digits than its factorization.

1323031203120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8494123 (or 8494117 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1323031203120 its reverse (213021303231), we get a palindrome (1536052506351).

The spelling of 1323031203120 in words is "one trillion, three hundred twenty-three billion, thirty-one million, two hundred three thousand, one hundred twenty".