2012051523 has 32 divisors (see below), whose sum is σ = 2903869440. Its totient is φ = 1235400320.

The previous prime is 2012051521. The next prime is 2012051533. The reversal of 2012051523 is 3251502102.

It is a cyclic number.

It is not a de Polignac number, because 2012051523 - 2¹ = 2012051521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2012051523.

It is not an unprimeable number, because it can be changed into a prime (2012051521) 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 31 ways as a sum of consecutive naturals, for example, 861265 + ... + 863597.

It is an arithmetic number, because the mean of its divisors is an integer number (90745920).

Almost surely, 2^2012051523 is an apocalyptic number.

2012051523 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2012051523 is a deficient number, since it is larger than the sum of its proper divisors (891817917).

2012051523 is a wasteful number, since it uses less digits than its factorization.

2012051523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2819.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2012051523 is about 44855.8973045908. The cubic root of 2012051523 is about 1262.4466450412.

Adding to 2012051523 its reverse (3251502102), we get a palindrome (5263553625).

The spelling of 2012051523 in words is "two billion, twelve million, fifty-one thousand, five hundred twenty-three".