123354241289 has 2 divisors, whose sum is σ = 123354241290. Its totient is φ = 123354241288.

The previous prime is 123354241277. The next prime is 123354241313. The reversal of 123354241289 is 982142453321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116190311689 + 7163929600 = 340867^2 + 84640^2 .

It is a cyclic number.

It is not a de Polignac number, because 123354241289 - 2²⁴ = 123337464073 is a prime.

It is not a weakly prime, because it can be changed into another prime (123354241589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61677120644 + 61677120645.

It is an arithmetic number, because the mean of its divisors is an integer number (61677120645).

Almost surely, 2^123354241289 is an apocalyptic number.

It is an amenable number.

123354241289 is a deficient number, since it is larger than the sum of its proper divisors (1).

123354241289 is an equidigital number, since it uses as much as digits as its factorization.

123354241289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 44.

The spelling of 123354241289 in words is "one hundred twenty-three billion, three hundred fifty-four million, two hundred forty-one thousand, two hundred eighty-nine".