123404441 has 2 divisors, whose sum is σ = 123404442. Its totient is φ = 123404440.

The previous prime is 123404431. The next prime is 123404497. The reversal of 123404441 is 144404321.

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., 123298816 + 105625 = 11104^2 + 325^2 .

It is an emirp because it is prime and its reverse (144404321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123404441 - 2¹⁰ = 123403417 is a prime.

It is a Chen prime.

It is equal to p_7024424 and since 123404441 and 7024424 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (123404431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61702220 + 61702221.

It is an arithmetic number, because the mean of its divisors is an integer number (61702221).

Almost surely, 2^123404441 is an apocalyptic number.

It is an amenable number.

123404441 is a deficient number, since it is larger than the sum of its proper divisors (1).

123404441 is an equidigital number, since it uses as much as digits as its factorization.

123404441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 123404441 is about 11108.7551507808. The cubic root of 123404441 is about 497.8634714955.

Adding to 123404441 its reverse (144404321), we get a palindrome (267808762).

The spelling of 123404441 in words is "one hundred twenty-three million, four hundred four thousand, four hundred forty-one".