123111424441 has 2 divisors, whose sum is σ = 123111424442. Its totient is φ = 123111424440.

The previous prime is 123111424427. The next prime is 123111424477. The reversal of 123111424441 is 144424111321.

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., 112965898816 + 10145525625 = 336104^2 + 100725^2 .

It is a cyclic number.

It is not a de Polignac number, because 123111424441 - 2¹³ = 123111416249 is a prime.

It is not a weakly prime, because it can be changed into another prime (123111424841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61555712220 + 61555712221.

It is an arithmetic number, because the mean of its divisors is an integer number (61555712221).

Almost surely, 2^123111424441 is an apocalyptic number.

It is an amenable number.

123111424441 is a deficient number, since it is larger than the sum of its proper divisors (1).

123111424441 is an equidigital number, since it uses as much as digits as its factorization.

123111424441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3072, while the sum is 28.

Adding to 123111424441 its reverse (144424111321), we get a palindrome (267535535762).

The spelling of 123111424441 in words is "one hundred twenty-three billion, one hundred eleven million, four hundred twenty-four thousand, four hundred forty-one".