12123112012330 has 128 divisors (see below), whose sum is σ = 24979052077056. Its totient is φ = 4196208172800.

The previous prime is 12123112012327. The next prime is 12123112012343. The reversal of 12123112012330 is 3321021132121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 64153464 + ... + 64342156.

It is an arithmetic number, because the mean of its divisors is an integer number (195148844352).

Almost surely, 2^{12123112012330} is an apocalyptic number.

12123112012330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12123112012330 is an abundant number, since it is smaller than the sum of its proper divisors (12855940064726).

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

12123112012330 is a wasteful number, since it uses less digits than its factorization.

12123112012330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189052.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12123112012330 its reverse (3321021132121), we get a palindrome (15444133144451).

The spelling of 12123112012330 in words is "twelve trillion, one hundred twenty-three billion, one hundred twelve million, twelve thousand, three hundred thirty".