21413002012 has 6 divisors (see below), whose sum is σ = 37472753528. Its totient is φ = 10706501004.

The previous prime is 21413002003. The next prime is 21413002043. The reversal of 21413002012 is 21020031412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2676625248 + ... + 2676625255.

Almost surely, 2^21413002012 is an apocalyptic number.

It is an amenable number.

21413002012 is a deficient number, since it is larger than the sum of its proper divisors (16059751516).

21413002012 is a wasteful number, since it uses less digits than its factorization.

21413002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5353250507 (or 5353250505 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21413002012 its reverse (21020031412), we get a palindrome (42433033424).

The spelling of 21413002012 in words is "twenty-one billion, four hundred thirteen million, two thousand, twelve".