2012132123 has 4 divisors (see below), whose sum is σ = 2017832568. Its totient is φ = 2006431680.

The previous prime is 2012132117. The next prime is 2012132131. The reversal of 2012132123 is 3212312102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2012132123 - 2²² = 2007937819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012132173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2849693 + ... + 2850398.

It is an arithmetic number, because the mean of its divisors is an integer number (504458142).

Almost surely, 2^2012132123 is an apocalyptic number.

2012132123 is a deficient number, since it is larger than the sum of its proper divisors (5700445).

2012132123 is an equidigital number, since it uses as much as digits as its factorization.

2012132123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5700444.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2012132123 is about 44856.7957281837. The cubic root of 2012132123 is about 1262.4635021047.

Adding to 2012132123 its reverse (3212312102), we get a palindrome (5224444225).

The spelling of 2012132123 in words is "two billion, twelve million, one hundred thirty-two thousand, one hundred twenty-three".