22440234023 has 2 divisors, whose sum is σ = 22440234024. Its totient is φ = 22440234022.

The previous prime is 22440233957. The next prime is 22440234049. The reversal of 22440234023 is 32043204422.

It is a happy number.

It is an a-pointer prime, because the next prime (22440234049) can be obtained adding 22440234023 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22440234023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22440233983 and 22440234001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22440234823) 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 as a sum of consecutive naturals, namely, 11220117011 + 11220117012.

It is an arithmetic number, because the mean of its divisors is an integer number (11220117012).

Almost surely, 2^22440234023 is an apocalyptic number.

22440234023 is a deficient number, since it is larger than the sum of its proper divisors (1).

22440234023 is an equidigital number, since it uses as much as digits as its factorization.

22440234023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 22440234023 its reverse (32043204422), we get a palindrome (54483438445).

The spelling of 22440234023 in words is "twenty-two billion, four hundred forty million, two hundred thirty-four thousand, twenty-three".