2231443320 has 32 divisors (see below), whose sum is σ = 6694330320. Its totient is φ = 595051520.

The previous prime is 2231443303. The next prime is 2231443321. The reversal of 2231443320 is 233441322.

It is a super-3 number, since 3×2231443320³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231443321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9297561 + ... + 9297800.

Almost surely, 2^2231443320 is an apocalyptic number.

2231443320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231443320 is an abundant number, since it is smaller than the sum of its proper divisors (4462887000).

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

2231443320 is a wasteful number, since it uses less digits than its factorization.

2231443320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18595375 (or 18595371 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 2231443320 is about 47238.1553407836. The cubic root of 2231443320 is about 1306.7583584252.

Adding to 2231443320 its reverse (233441322), we get a palindrome (2464884642).

The spelling of 2231443320 in words is "two billion, two hundred thirty-one million, four hundred forty-three thousand, three hundred twenty".