12440123411 has 2 divisors, whose sum is σ = 12440123412. Its totient is φ = 12440123410.

The previous prime is 12440123383. The next prime is 12440123431. The reversal of 12440123411 is 11432104421.

It is a strong prime.

It is an emirp because it is prime and its reverse (11432104421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12440123411 - 2⁶ = 12440123347 is a prime.

It is not a weakly prime, because it can be changed into another prime (12440123431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6220061705 + 6220061706.

It is an arithmetic number, because the mean of its divisors is an integer number (6220061706).

Almost surely, 2^12440123411 is an apocalyptic number.

12440123411 is a deficient number, since it is larger than the sum of its proper divisors (1).

12440123411 is an equidigital number, since it uses as much as digits as its factorization.

12440123411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 12440123411 its reverse (11432104421), we get a palindrome (23872227832).

The spelling of 12440123411 in words is "twelve billion, four hundred forty million, one hundred twenty-three thousand, four hundred eleven".