123130235 has 16 divisors (see below), whose sum is σ = 156857472. Its totient is φ = 92467200.

The previous prime is 123130223. The next prime is 123130243. The reversal of 123130235 is 532031321.

It is not a de Polignac number, because 123130235 - 2⁴ = 123130219 is a prime.

It is a super-2 number, since 2×123130235² = 30322109542310450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34955 + ... + 38315.

It is an arithmetic number, because the mean of its divisors is an integer number (9803592).

Almost surely, 2^123130235 is an apocalyptic number.

123130235 is a deficient number, since it is larger than the sum of its proper divisors (33727237).

123130235 is a wasteful number, since it uses less digits than its factorization.

123130235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3814.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 123130235 is about 11096.4064002721. The cubic root of 123130235 is about 497.4944453644.

Adding to 123130235 its reverse (532031321), we get a palindrome (655161556).

The spelling of 123130235 in words is "one hundred twenty-three million, one hundred thirty thousand, two hundred thirty-five".