21303201132 has 18 divisors (see below), whose sum is σ = 53849758508. Its totient is φ = 7101067032.

The previous prime is 21303201121. The next prime is 21303201133. The reversal of 21303201132 is 23110230312.

21303201132 is a `hidden beast` number, since 213 + 0 + 320 + 1 + 132 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (21303201133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 295877758 + ... + 295877829.

Almost surely, 2^21303201132 is an apocalyptic number.

It is an amenable number.

21303201132 is an abundant number, since it is smaller than the sum of its proper divisors (32546557376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21303201132 is a wasteful number, since it uses less digits than its factorization.

21303201132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591755597 (or 591755592 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21303201132 its reverse (23110230312), we get a palindrome (44413431444).

The spelling of 21303201132 in words is "twenty-one billion, three hundred three million, two hundred one thousand, one hundred thirty-two".