12230121123 has 32 divisors (see below), whose sum is σ = 19822656000. Its totient is φ = 7390893600.

The previous prime is 12230121119. The next prime is 12230121133. The reversal of 12230121123 is 32112103221.

It is not a de Polignac number, because 12230121123 - 2² = 12230121119 is a prime.

It is a super-2 number, since 2×12230121123² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12230121096 and 12230121105.

It is not an unprimeable number, because it can be changed into a prime (12230121133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44658 + ... + 162648.

It is an arithmetic number, because the mean of its divisors is an integer number (619458000).

Almost surely, 2^12230121123 is an apocalyptic number.

12230121123 is a deficient number, since it is larger than the sum of its proper divisors (7592534877).

12230121123 is a wasteful number, since it uses less digits than its factorization.

12230121123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118360 (or 118354 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12230121123 its reverse (32112103221), we get a palindrome (44342224344).

The spelling of 12230121123 in words is "twelve billion, two hundred thirty million, one hundred twenty-one thousand, one hundred twenty-three".