2012513421 has 32 divisors (see below), whose sum is σ = 2872455040. Its totient is φ = 1249634304.

The previous prime is 2012513369. The next prime is 2012513441. The reversal of 2012513421 is 1243152102.

It is not a de Polignac number, because 2012513421 - 2⁶ = 2012513357 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 (2012513441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1801155 + ... + 1802271.

It is an arithmetic number, because the mean of its divisors is an integer number (89764220).

Almost surely, 2^2012513421 is an apocalyptic number.

It is an amenable number.

2012513421 is a deficient number, since it is larger than the sum of its proper divisors (859941619).

2012513421 is a wasteful number, since it uses less digits than its factorization.

2012513421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2012513421 is about 44861.0456966843. The cubic root of 2012513421 is about 1262.5432424623.

Adding to 2012513421 its reverse (1243152102), we get a palindrome (3255665523).

The spelling of 2012513421 in words is "two billion, twelve million, five hundred thirteen thousand, four hundred twenty-one".