21010204132 has 12 divisors (see below), whose sum is σ = 36897780976. Its totient is φ = 10467981000.

The previous prime is 21010204109. The next prime is 21010204141. The reversal of 21010204132 is 23140201012.

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, 9278994 + ... + 9281257.

Almost surely, 2^21010204132 is an apocalyptic number.

It is an amenable number.

21010204132 is a deficient number, since it is larger than the sum of its proper divisors (15887576844).

21010204132 is a wasteful number, since it uses less digits than its factorization.

21010204132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18560538 (or 18560536 counting only the distinct ones).

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

Adding to 21010204132 its reverse (23140201012), we get a palindrome (44150405144).

The spelling of 21010204132 in words is "twenty-one billion, ten million, two hundred four thousand, one hundred thirty-two".