2231320442 has 32 divisors (see below), whose sum is σ = 3800798400. Its totient is φ = 973928448.

The previous prime is 2231320433. The next prime is 2231320463. The reversal of 2231320442 is 2440231322.

It is a super-3 number, since 3×2231320442³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302138 + ... + 309434.

It is an arithmetic number, because the mean of its divisors is an integer number (118774950).

Almost surely, 2^2231320442 is an apocalyptic number.

2231320442 is a deficient number, since it is larger than the sum of its proper divisors (1569477958).

2231320442 is a wasteful number, since it uses less digits than its factorization.

2231320442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7950.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2231320442 is about 47236.8547005408. The cubic root of 2231320442 is about 1306.7343717376.

Adding to 2231320442 its reverse (2440231322), we get a palindrome (4671551764).

The spelling of 2231320442 in words is "two billion, two hundred thirty-one million, three hundred twenty thousand, four hundred forty-two".