123540341 has 2 divisors, whose sum is σ = 123540342. Its totient is φ = 123540340.

The previous prime is 123540331. The next prime is 123540367. The reversal of 123540341 is 143045321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123432100 + 108241 = 11110^2 + 329^2 .

It is an emirp because it is prime and its reverse (143045321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123540341 - 2²² = 119346037 is a prime.

It is a Chen prime.

It is equal to p_7031705 and since 123540341 and 7031705 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123540331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61770170 + 61770171.

It is an arithmetic number, because the mean of its divisors is an integer number (61770171).

Almost surely, 2^123540341 is an apocalyptic number.

It is an amenable number.

123540341 is a deficient number, since it is larger than the sum of its proper divisors (1).

123540341 is an equidigital number, since it uses as much as digits as its factorization.

123540341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 123540341 is about 11114.8702646500. The cubic root of 123540341 is about 498.0461629868.

Adding to 123540341 its reverse (143045321), we get a palindrome (266585662).

The spelling of 123540341 in words is "one hundred twenty-three million, five hundred forty thousand, three hundred forty-one".