22031230311 has 32 divisors (see below), whose sum is σ = 33430214400. Its totient is φ = 14335405920.

The previous prime is 22031230289. The next prime is 22031230327. The reversal of 22031230311 is 11303213022.

It is not a de Polignac number, because 22031230311 - 2²² = 22027036007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22031234311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141316 + ... + 253046.

It is an arithmetic number, because the mean of its divisors is an integer number (1044694200).

Almost surely, 2^22031230311 is an apocalyptic number.

22031230311 is a deficient number, since it is larger than the sum of its proper divisors (11398984089).

22031230311 is a wasteful number, since it uses less digits than its factorization.

22031230311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111916 (or 111910 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 22031230311 its reverse (11303213022), we get a palindrome (33334443333).

The spelling of 22031230311 in words is "twenty-two billion, thirty-one million, two hundred thirty thousand, three hundred eleven".