123413743217 has 2 divisors, whose sum is σ = 123413743218. Its totient is φ = 123413743216.

The previous prime is 123413743171. The next prime is 123413743223. The reversal of 123413743217 is 712347314321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83150912881 + 40262830336 = 288359^2 + 200656^2 .

It is a cyclic number.

It is not a de Polignac number, because 123413743217 - 2⁶ = 123413743153 is a prime.

It is a super-2 number, since 2×123413743217² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123413743237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61706871608 + 61706871609.

It is an arithmetic number, because the mean of its divisors is an integer number (61706871609).

Almost surely, 2^123413743217 is an apocalyptic number.

It is an amenable number.

123413743217 is a deficient number, since it is larger than the sum of its proper divisors (1).

123413743217 is an equidigital number, since it uses as much as digits as its factorization.

123413743217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 38.

The spelling of 123413743217 in words is "one hundred twenty-three billion, four hundred thirteen million, seven hundred forty-three thousand, two hundred seventeen".