1323031303020 has 96 divisors (see below), whose sum is σ = 4233880078848. Its totient is φ = 302394304512.

The previous prime is 1323031302997. The next prime is 1323031303043. The reversal of 1323031303020 is 203031303231.

It is an interprime number because it is at equal distance from previous prime (1323031302997) and next prime (1323031303043).

It is a super-2 number, since 2×1323031303020² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 12744444 + ... + 12847836.

It is an arithmetic number, because the mean of its divisors is an integer number (44102917488).

Almost surely, 2^{1323031303020} is an apocalyptic number.

1323031303020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323031303020 is an abundant number, since it is smaller than the sum of its proper divisors (2910848775828).

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

1323031303020 is a wasteful number, since it uses less digits than its factorization.

1323031303020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133879 (or 133877 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 1323031303020 its reverse (203031303231), we get a palindrome (1526062606251).

The spelling of 1323031303020 in words is "one trillion, three hundred twenty-three billion, thirty-one million, three hundred three thousand, twenty".