2012120231 has 8 divisors (see below), whose sum is σ = 2196129024. Its totient is φ = 1828292920.

The previous prime is 2012120219. The next prime is 2012120263. The reversal of 2012120231 is 1320212102.

It is a happy number.

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 2012120231 - 2⁶ = 2012120167 is a prime.

It is a super-2 number, since 2×2012120231² = 8097255647998986722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012128231) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 21641 + ... + 67026.

It is an arithmetic number, because the mean of its divisors is an integer number (274516128).

Almost surely, 2^2012120231 is an apocalyptic number.

2012120231 is a deficient number, since it is larger than the sum of its proper divisors (184008793).

2012120231 is a wasteful number, since it uses less digits than its factorization.

2012120231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90741.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2012120231 is about 44856.6631728219. The cubic root of 2012120231 is about 1262.4610149841.

Adding to 2012120231 its reverse (1320212102), we get a palindrome (3332332333).

The spelling of 2012120231 in words is "two billion, twelve million, one hundred twenty thousand, two hundred thirty-one".