123351144017 has 4 divisors (see below), whose sum is σ = 125192205936. Its totient is φ = 121510082100.

The previous prime is 123351144013. The next prime is 123351144031. The reversal of 123351144017 is 710441153321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 710441153321 = 11971 ⋅59346851.

It is a cyclic number.

It is not a de Polignac number, because 123351144017 - 2² = 123351144013 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123351144013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 920530859 + ... + 920530992.

It is an arithmetic number, because the mean of its divisors is an integer number (31298051484).

Almost surely, 2^123351144017 is an apocalyptic number.

It is an amenable number.

123351144017 is a deficient number, since it is larger than the sum of its proper divisors (1841061919).

123351144017 is an equidigital number, since it uses as much as digits as its factorization.

123351144017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1841061918.

The product of its (nonzero) digits is 10080, while the sum is 32.

Adding to 123351144017 its reverse (710441153321), we get a palindrome (833792297338).

The spelling of 123351144017 in words is "one hundred twenty-three billion, three hundred fifty-one million, one hundred forty-four thousand, seventeen".