323031140120 has 128 divisors (see below), whose sum is σ = 791409709440. Its totient is φ = 117953126400.

The previous prime is 323031140093. The next prime is 323031140137. The reversal of 323031140120 is 21041130323.

It is a super-2 number, since 2×323031140120² (a number of 24 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 = 323031140092 and 323031140101.

It is a congruent number.

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, 51624032 + ... + 51630288.

It is an arithmetic number, because the mean of its divisors is an integer number (6182888355).

Almost surely, 2^323031140120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 323031140120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (395704854720).

323031140120 is an abundant number, since it is smaller than the sum of its proper divisors (468378569320).

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

323031140120 is a wasteful number, since it uses less digits than its factorization.

323031140120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7365 (or 7361 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 323031140120 its reverse (21041130323), we get a palindrome (344072270443).

The spelling of 323031140120 in words is "three hundred twenty-three billion, thirty-one million, one hundred forty thousand, one hundred twenty".