2311213444 has 12 divisors (see below), whose sum is σ = 4282542684. Its totient is φ = 1087629824.

The previous prime is 2311213417. The next prime is 2311213451. The reversal of 2311213444 is 4443121132.

It can be written as a sum of positive squares in 2 ways, for example, as 950488900 + 1360724544 = 30830^2 + 36888^2 .

It is a super-2 number, since 2×2311213444² = 10683415167452682272, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16994149 + ... + 16994284.

It is an arithmetic number, because the mean of its divisors is an integer number (356878557).

Almost surely, 2^2311213444 is an apocalyptic number.

It is an amenable number.

2311213444 is a deficient number, since it is larger than the sum of its proper divisors (1971329240).

2311213444 is a wasteful number, since it uses less digits than its factorization.

2311213444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33988454 (or 33988452 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 2311213444 is about 48075.0813207841. The cubic root of 2311213444 is about 1322.1478355199.

Adding to 2311213444 its reverse (4443121132), we get a palindrome (6754334576).

The spelling of 2311213444 in words is "two billion, three hundred eleven million, two hundred thirteen thousand, four hundred forty-four".