123344124191 has 2 divisors, whose sum is σ = 123344124192. Its totient is φ = 123344124190.

The previous prime is 123344124187. The next prime is 123344124217. The reversal of 123344124191 is 191421443321.

It is a weak prime.

It is an emirp because it is prime and its reverse (191421443321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123344124191 - 2² = 123344124187 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123344624191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61672062095 + 61672062096.

It is an arithmetic number, because the mean of its divisors is an integer number (61672062096).

Almost surely, 2^123344124191 is an apocalyptic number.

123344124191 is a deficient number, since it is larger than the sum of its proper divisors (1).

123344124191 is an equidigital number, since it uses as much as digits as its factorization.

123344124191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 35.

The spelling of 123344124191 in words is "one hundred twenty-three billion, three hundred forty-four million, one hundred twenty-four thousand, one hundred ninety-one".