22423231109 has 2 divisors, whose sum is σ = 22423231110. Its totient is φ = 22423231108.

The previous prime is 22423231087. The next prime is 22423231163. The reversal of 22423231109 is 90113232422.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22169721025 + 253510084 = 148895^2 + 15922^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22423231109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22423231009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11211615554 + 11211615555.

It is an arithmetic number, because the mean of its divisors is an integer number (11211615555).

Almost surely, 2^22423231109 is an apocalyptic number.

It is an amenable number.

22423231109 is a deficient number, since it is larger than the sum of its proper divisors (1).

22423231109 is an equidigital number, since it uses as much as digits as its factorization.

22423231109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 22423231109 in words is "twenty-two billion, four hundred twenty-three million, two hundred thirty-one thousand, one hundred nine".