123451141117 has 2 divisors, whose sum is σ = 123451141118. Its totient is φ = 123451141116.

The previous prime is 123451141061. The next prime is 123451141133. The reversal of 123451141117 is 711141154321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62409532761 + 61041608356 = 249819^2 + 247066^2 .

It is a cyclic number.

It is not a de Polignac number, because 123451141117 - 2¹¹ = 123451139069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123451121117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61725570558 + 61725570559.

It is an arithmetic number, because the mean of its divisors is an integer number (61725570559).

Almost surely, 2^123451141117 is an apocalyptic number.

It is an amenable number.

123451141117 is a deficient number, since it is larger than the sum of its proper divisors (1).

123451141117 is an equidigital number, since it uses as much as digits as its factorization.

123451141117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 31.

Adding to 123451141117 its reverse (711141154321), we get a palindrome (834592295438).

The spelling of 123451141117 in words is "one hundred twenty-three billion, four hundred fifty-one million, one hundred forty-one thousand, one hundred seventeen".