2231320302 has 12 divisors (see below), whose sum is σ = 4834527360. Its totient is φ = 743773428.

The previous prime is 2231320283. The next prime is 2231320339. The reversal of 2231320302 is 2030231322.

It is a happy number.

It is a super-3 number, since 3×2231320302³ (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), and also a Moran number because the ratio is a prime number: 123962239 = 2231320302 / (2 + 2 + 3 + 1 + 3 + 2 + 0 + 3 + 0 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61981102 + ... + 61981137.

It is an arithmetic number, because the mean of its divisors is an integer number (402877280).

Almost surely, 2^2231320302 is an apocalyptic number.

2231320302 is an abundant number, since it is smaller than the sum of its proper divisors (2603207058).

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

2231320302 is a wasteful number, since it uses less digits than its factorization.

2231320302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123962247 (or 123962244 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 2231320302 is about 47236.8532186470. The cubic root of 2231320302 is about 1306.7343444081.

Adding to 2231320302 its reverse (2030231322), we get a palindrome (4261551624).

The spelling of 2231320302 in words is "two billion, two hundred thirty-one million, three hundred twenty thousand, three hundred two".