2012012423 has 4 divisors (see below), whose sum is σ = 2099491248. Its totient is φ = 1924533600.

The previous prime is 2012012383. The next prime is 2012012459. The reversal of 2012012423 is 3242102102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2012012423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012032423) 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, 43739378 + ... + 43739423.

It is an arithmetic number, because the mean of its divisors is an integer number (524872812).

Almost surely, 2^2012012423 is an apocalyptic number.

2012012423 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2012012423 is a deficient number, since it is larger than the sum of its proper divisors (87478825).

2012012423 is an equidigital number, since it uses as much as digits as its factorization.

2012012423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87478824.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2012012423 is about 44855.4614623459. The cubic root of 2012012423 is about 1262.4384673209.

Adding to 2012012423 its reverse (3242102102), we get a palindrome (5254114525).

The spelling of 2012012423 in words is "two billion, twelve million, twelve thousand, four hundred twenty-three".