2231321130 has 96 divisors (see below), whose sum is σ = 5882647680. Its totient is φ = 586753920.

The previous prime is 2231321117. The next prime is 2231321137. The reversal of 2231321130 is 311231322.

It is a super-3 number, since 3×2231321130³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2231321137) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2163715 + ... + 2164745.

It is an arithmetic number, because the mean of its divisors is an integer number (61277580).

Almost surely, 2^2231321130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2231321130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2941323840).

2231321130 is an abundant number, since it is smaller than the sum of its proper divisors (3651326550).

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

2231321130 is a wasteful number, since it uses less digits than its factorization.

2231321130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356 (or 1353 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2231321130 is about 47236.8619829895. The cubic root of 2231321130 is about 1306.7345060427.

Adding to 2231321130 its reverse (311231322), we get a palindrome (2542552452).

The spelling of 2231321130 in words is "two billion, two hundred thirty-one million, three hundred twenty-one thousand, one hundred thirty".