22231230311 has 4 divisors (see below), whose sum is σ = 22236372432. Its totient is φ = 22226088192.

The previous prime is 22231230299. The next prime is 22231230319. The reversal of 22231230311 is 11303213222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22231230311 - 2¹⁰ = 22231229287 is a prime.

It is a super-2 number, since 2×22231230311² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22231230319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2564570 + ... + 2573223.

It is an arithmetic number, because the mean of its divisors is an integer number (5559093108).

Almost surely, 2^22231230311 is an apocalyptic number.

22231230311 is a deficient number, since it is larger than the sum of its proper divisors (5142121).

22231230311 is an equidigital number, since it uses as much as digits as its factorization.

22231230311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5142120.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 22231230311 its reverse (11303213222), we get a palindrome (33534443533).

The spelling of 22231230311 in words is "twenty-two billion, two hundred thirty-one million, two hundred thirty thousand, three hundred eleven".