1323031310120 has 128 divisors (see below), whose sum is σ = 3346762890240. Its totient is φ = 467044807680.

The previous prime is 1323031310119. The next prime is 1323031310137. The reversal of 1323031310120 is 210131303231.

It is a super-2 number, since 2×1323031310120² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1323031310092 and 1323031310101.

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, 26538257 + ... + 26588063.

It is an arithmetic number, because the mean of its divisors is an integer number (26146585080).

Almost surely, 2^{1323031310120} is an apocalyptic number.

1323031310120 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 1323031310120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1673381445120).

1323031310120 is an abundant number, since it is smaller than the sum of its proper divisors (2023731580120).

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

1323031310120 is a wasteful number, since it uses less digits than its factorization.

1323031310120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52075 (or 52071 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1323031310120 its reverse (210131303231), we get a palindrome (1533162613351).

The spelling of 1323031310120 in words is "one trillion, three hundred twenty-three billion, thirty-one million, three hundred ten thousand, one hundred twenty".