220340044123 has 2 divisors, whose sum is σ = 220340044124. Its totient is φ = 220340044122.

The previous prime is 220340044103. The next prime is 220340044147. The reversal of 220340044123 is 321440043022.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220340044123 - 2²¹ = 220337946971 is a prime.

It is not a weakly prime, because it can be changed into another prime (220340044103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110170022061 + 110170022062.

It is an arithmetic number, because the mean of its divisors is an integer number (110170022062).

Almost surely, 2^220340044123 is an apocalyptic number.

220340044123 is a deficient number, since it is larger than the sum of its proper divisors (1).

220340044123 is an equidigital number, since it uses as much as digits as its factorization.

220340044123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 220340044123 its reverse (321440043022), we get a palindrome (541780087145).

The spelling of 220340044123 in words is "two hundred twenty billion, three hundred forty million, forty-four thousand, one hundred twenty-three".