2012320123 has 8 divisors (see below), whose sum is σ = 2195608896. Its totient is φ = 1829089800.

The previous prime is 2012320091. The next prime is 2012320133. The reversal of 2012320123 is 3210232102.

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

It is a cyclic number.

It is not a de Polignac number, because 2012320123 - 2⁵ = 2012320091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012320097 and 2012320106.

It is not an unprimeable number, because it can be changed into a prime (2012320133) 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, 89940 + ... + 110062.

It is an arithmetic number, because the mean of its divisors is an integer number (274451112).

Almost surely, 2^2012320123 is an apocalyptic number.

2012320123 is a deficient number, since it is larger than the sum of its proper divisors (183288773).

2012320123 is a wasteful number, since it uses less digits than its factorization.

2012320123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29225.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2012320123 is about 44858.8912368552. The cubic root of 2012320123 is about 1262.5028195604.

Adding to 2012320123 its reverse (3210232102), we get a palindrome (5222552225).

The spelling of 2012320123 in words is "two billion, twelve million, three hundred twenty thousand, one hundred twenty-three".