123380619 has 4 divisors (see below), whose sum is σ = 164507496. Its totient is φ = 82253744.

The previous prime is 123380617. The next prime is 123380669. The reversal of 123380619 is 916083321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123380619 - 2¹ = 123380617 is a prime.

It is a super-2 number, since 2×123380619² = 30445554289646322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123380619.

It is not an unprimeable number, because it can be changed into a prime (123380617) 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, 20563434 + ... + 20563439.

It is an arithmetic number, because the mean of its divisors is an integer number (41126874).

Almost surely, 2^123380619 is an apocalyptic number.

123380619 is a deficient number, since it is larger than the sum of its proper divisors (41126877).

123380619 is an equidigital number, since it uses as much as digits as its factorization.

123380619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41126876.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 123380619 is about 11107.6828816815. The cubic root of 123380619 is about 497.8314335700.

The spelling of 123380619 in words is "one hundred twenty-three million, three hundred eighty thousand, six hundred nineteen".