123380674559 has 4 divisors (see below), whose sum is σ = 126249992616. Its totient is φ = 120511356504.

The previous prime is 123380674553. The next prime is 123380674579. The reversal of 123380674559 is 955476083321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 955476083321 = 29 ⋅32947451149.

It is a cyclic number.

It is not a de Polignac number, because 123380674559 - 2²⁰ = 123379625983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123380674559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123380674553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1434658964 + ... + 1434659049.

It is an arithmetic number, because the mean of its divisors is an integer number (31562498154).

It is a 1-persistent number, because it is pandigital, but 2⋅123380674559 = 246761349118 is not.

Almost surely, 2^123380674559 is an apocalyptic number.

123380674559 is a deficient number, since it is larger than the sum of its proper divisors (2869318057).

123380674559 is an equidigital number, since it uses as much as digits as its factorization.

123380674559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2869318056.

The product of its (nonzero) digits is 5443200, while the sum is 53.

The spelling of 123380674559 in words is "one hundred twenty-three billion, three hundred eighty million, six hundred seventy-four thousand, five hundred fifty-nine".