2231030320 has 160 divisors (see below), whose sum is σ = 5633925120. Its totient is φ = 819624960.

The previous prime is 2231030279. The next prime is 2231030359. The reversal of 2231030320 is 230301322.

It is a super-3 number, since 3×2231030320³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 2231030294 and 2231030303.

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, 4818409 + ... + 4818871.

It is an arithmetic number, because the mean of its divisors is an integer number (35212032).

Almost surely, 2^2231030320 is an apocalyptic number.

2231030320 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 2231030320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2816962560).

2231030320 is an abundant number, since it is smaller than the sum of its proper divisors (3402894800).

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

2231030320 is a wasteful number, since it uses less digits than its factorization.

2231030320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603 (or 597 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 2231030320 is about 47233.7836722827. The cubic root of 2231030320 is about 1306.6777342993.

Adding to 2231030320 its reverse (230301322), we get a palindrome (2461331642).

The spelling of 2231030320 in words is "two billion, two hundred thirty-one million, thirty thousand, three hundred twenty".