123384130 has 16 divisors (see below), whose sum is σ = 235155960. Its totient is φ = 46450432.

The previous prime is 123384103. The next prime is 123384143. The reversal of 123384130 is 31483321.

It can be written as a sum of positive squares in 4 ways, for example, as 84658401 + 38725729 = 9201^2 + 6223^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123384095 and 123384104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362725 + ... + 363064.

Almost surely, 2^123384130 is an apocalyptic number.

123384130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123384130 is a deficient number, since it is larger than the sum of its proper divisors (111771830).

123384130 is a wasteful number, since it uses less digits than its factorization.

123384130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725813.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 123384130 is about 11107.8409243201. The cubic root of 123384130 is about 497.8361557314.

The spelling of 123384130 in words is "one hundred twenty-three million, three hundred eighty-four thousand, one hundred thirty".