2012130456 has 64 divisors (see below), whose sum is σ = 5771969280. Its totient is φ = 572592000.

The previous prime is 2012130451. The next prime is 2012130467. The reversal of 2012130456 is 6540312102.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012130451) 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 15 ways as a sum of consecutive naturals, for example, 18310 + ... + 66026.

It is an arithmetic number, because the mean of its divisors is an integer number (90187020).

Almost surely, 2^2012130456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2012130456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2885984640).

2012130456 is an abundant number, since it is smaller than the sum of its proper divisors (3759838824).

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

2012130456 is a wasteful number, since it uses less digits than its factorization.

2012130456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47984 (or 47980 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2012130456 is about 44856.7771468259. Note that the first 3 decimals coincide. The cubic root of 2012130456 is about 1262.4631534650.

Adding to 2012130456 its reverse (6540312102), we get a palindrome (8552442558).

The spelling of 2012130456 in words is "two billion, twelve million, one hundred thirty thousand, four hundred fifty-six".