2321315120 has 80 divisors (see below), whose sum is σ = 5736656640. Its totient is φ = 871057152.

The previous prime is 2321315107. The next prime is 2321315131. The reversal of 2321315120 is 215131232.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×2321315120² = 10777007772681228800, which 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 = 2321315092 and 2321315101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149147 + ... + 163973.

It is an arithmetic number, because the mean of its divisors is an integer number (71708208).

Almost surely, 2^2321315120 is an apocalyptic number.

2321315120 is a gapful number since it is divisible by the number (20) 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 2321315120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2868328320).

2321315120 is an abundant number, since it is smaller than the sum of its proper divisors (3415341520).

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

2321315120 is a wasteful number, since it uses less digits than its factorization.

2321315120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14962 (or 14956 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 2321315120 is about 48180.0282274720. The cubic root of 2321315120 is about 1324.0712836944.

Adding to 2321315120 its reverse (215131232), we get a palindrome (2536446352).

The spelling of 2321315120 in words is "two billion, three hundred twenty-one million, three hundred fifteen thousand, one hundred twenty".