123891230 has 16 divisors (see below), whose sum is σ = 223353504. Its totient is φ = 49478880.

The previous prime is 123891227. The next prime is 123891233. The reversal of 123891230 is 32198321.

It is an interprime number because it is at equal distance from previous prime (123891227) and next prime (123891233).

It is a junction number, because it is equal to n+sod(n) for n = 123891193 and 123891202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123891233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2762 + ... + 15981.

It is an arithmetic number, because the mean of its divisors is an integer number (13959594).

Almost surely, 2^123891230 is an apocalyptic number.

123891230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123891230 is a deficient number, since it is larger than the sum of its proper divisors (99462274).

123891230 is a wasteful number, since it uses less digits than its factorization.

123891230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19411.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 123891230 is about 11130.6437369992. The cubic root of 123891230 is about 498.5172472350.

The spelling of 123891230 in words is "one hundred twenty-three million, eight hundred ninety-one thousand, two hundred thirty".