123430120 has 64 divisors (see below), whose sum is σ = 305000640. Its totient is φ = 44582400.

The previous prime is 123430117. The next prime is 123430123. The reversal of 123430120 is 21034321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (123430117) and next prime (123430123).

It is a junction number, because it is equal to n+sod(n) for n = 123430094 and 123430103.

It is not an unprimeable number, because it can be changed into a prime (123430123) 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, 70860 + ... + 72580.

It is an arithmetic number, because the mean of its divisors is an integer number (4765635).

Almost surely, 2^123430120 is an apocalyptic number.

123430120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123430120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152500320).

123430120 is an abundant number, since it is smaller than the sum of its proper divisors (181570520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123430120 is a wasteful number, since it uses less digits than its factorization.

123430120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906 (or 1902 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 123430120 is about 11109.9108907318. The cubic root of 123430120 is about 497.8980022610.

Adding to 123430120 its reverse (21034321), we get a palindrome (144464441).

It can be divided in two parts, 1234301 and 20, that added together give a palindrome (1234321).

The spelling of 123430120 in words is "one hundred twenty-three million, four hundred thirty thousand, one hundred twenty".