21413413012 has 12 divisors (see below), whose sum is σ = 37474505236. Its totient is φ = 10706411520.

The previous prime is 21413413001. The next prime is 21413413031. The reversal of 21413413012 is 21031431412.

It can be written as a sum of positive squares in 2 ways, for example, as 5669186436 + 15744226576 = 75294^2 + 125476^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216562 + ... + 299542.

Almost surely, 2^21413413012 is an apocalyptic number.

It is an amenable number.

21413413012 is a deficient number, since it is larger than the sum of its proper divisors (16061092224).

21413413012 is a wasteful number, since it uses less digits than its factorization.

21413413012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147498 (or 147496 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21413413012 its reverse (21031431412), we get a palindrome (42444844424).

The spelling of 21413413012 in words is "twenty-one billion, four hundred thirteen million, four hundred thirteen thousand, twelve".