21430311066652 has 12 divisors (see below), whose sum is σ = 38516640160600. Its totient is φ = 10425556735056.

The previous prime is 21430311066631. The next prime is 21430311066653. The reversal of 21430311066652 is 25666011303412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21430311066653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72399699402 + ... + 72399699697.

Almost surely, 2^{21430311066652} is an apocalyptic number.

It is an amenable number.

21430311066652 is a deficient number, since it is larger than the sum of its proper divisors (17086329093948).

21430311066652 is a wasteful number, since it uses less digits than its factorization.

21430311066652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144799399140 (or 144799399138 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 21430311066652 in words is "twenty-one trillion, four hundred thirty billion, three hundred eleven million, sixty-six thousand, six hundred fifty-two".