2231303320 has 32 divisors (see below), whose sum is σ = 5041285920. Its totient is φ = 888814080.

The previous prime is 2231303303. The next prime is 2231303369. The reversal of 2231303320 is 233031322.

It is a happy number.

It is a super-3 number, since 3×2231303320³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106092 + ... + 125371.

It is an arithmetic number, because the mean of its divisors is an integer number (157540185).

Almost surely, 2^2231303320 is an apocalyptic number.

2231303320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231303320 is an abundant number, since it is smaller than the sum of its proper divisors (2809982600).

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

2231303320 is a wasteful number, since it uses less digits than its factorization.

2231303320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231715 (or 231711 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 2231303320 is about 47236.6734645868. The cubic root of 2231303320 is about 1306.7310293277.

Adding to 2231303320 its reverse (233031322), we get a palindrome (2464334642).

The spelling of 2231303320 in words is "two billion, two hundred thirty-one million, three hundred three thousand, three hundred twenty".