12320123130 has 96 divisors (see below), whose sum is σ = 37109988864. Its totient is φ = 2777442048.

The previous prime is 12320123129. The next prime is 12320123143. The reversal of 12320123130 is 3132102321.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 87954 + ... + 179933.

It is an arithmetic number, because the mean of its divisors is an integer number (386562384).

Almost surely, 2^12320123130 is an apocalyptic number.

12320123130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12320123130 is an abundant number, since it is smaller than the sum of its proper divisors (24789865734).

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

12320123130 is a wasteful number, since it uses less digits than its factorization.

12320123130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267980 (or 267977 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12320123130 its reverse (3132102321), we get a palindrome (15452225451).

The spelling of 12320123130 in words is "twelve billion, three hundred twenty million, one hundred twenty-three thousand, one hundred thirty".