123340142441 has 4 divisors (see below), whose sum is σ = 123342390912. Its totient is φ = 123337893972.

The previous prime is 123340142413. The next prime is 123340142473. The reversal of 123340142441 is 144241043321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123340142441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123340142641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1039841 + ... + 1152366.

It is an arithmetic number, because the mean of its divisors is an integer number (30835597728).

Almost surely, 2^123340142441 is an apocalyptic number.

It is an amenable number.

123340142441 is a deficient number, since it is larger than the sum of its proper divisors (2248471).

123340142441 is an equidigital number, since it uses as much as digits as its factorization.

123340142441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2248470.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 123340142441 its reverse (144241043321), we get a palindrome (267581185762).

The spelling of 123340142441 in words is "one hundred twenty-three billion, three hundred forty million, one hundred forty-two thousand, four hundred forty-one".