123430030 has 32 divisors (see below), whose sum is σ = 237136896. Its totient is φ = 46093824.

The previous prime is 123430019. The next prime is 123430031. The reversal of 123430030 is 30034321.

It is a junction number, because it is equal to n+sod(n) for n = 123429986 and 123430013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123430031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18732 + ... + 24448.

It is an arithmetic number, because the mean of its divisors is an integer number (7410528).

Almost surely, 2^123430030 is an apocalyptic number.

123430030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123430030 is a deficient number, since it is larger than the sum of its proper divisors (113706866).

123430030 is a wasteful number, since it uses less digits than its factorization.

123430030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5868.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 123430030 is about 11109.9068402935. The cubic root of 123430030 is about 497.8978812456.

Adding to 123430030 its reverse (30034321), we get a palindrome (153464351).

The spelling of 123430030 in words is "one hundred twenty-three million, four hundred thirty thousand, thirty".