12120030123 has 8 divisors (see below), whose sum is σ = 16166435136. Its totient is φ = 8076822600.

The previous prime is 12120030121. The next prime is 12120030149. The reversal of 12120030123 is 32103002121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12120030123 - 2¹ = 12120030121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12120030121) 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, 790513 + ... + 805698.

It is an arithmetic number, because the mean of its divisors is an integer number (2020804392).

Almost surely, 2^12120030123 is an apocalyptic number.

12120030123 is a deficient number, since it is larger than the sum of its proper divisors (4046405013).

12120030123 is a wasteful number, since it uses less digits than its factorization.

12120030123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1598745.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12120030123 its reverse (32103002121), we get a palindrome (44223032244).

The spelling of 12120030123 in words is "twelve billion, one hundred twenty million, thirty thousand, one hundred twenty-three".