21300452515132 has 24 divisors (see below), whose sum is σ = 42601033096160. Its totient is φ = 9128737920960.

The previous prime is 21300452515123. The next prime is 21300452515171. The reversal of 21300452515132 is 23151525400312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10371382 + ... + 12254242.

Almost surely, 2^{21300452515132} is an apocalyptic number.

It is an amenable number.

21300452515132 is an abundant number, since it is smaller than the sum of its proper divisors (21300580581028).

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

21300452515132 is a wasteful number, since it uses less digits than its factorization.

21300452515132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286901 (or 2286899 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 21300452515132 its reverse (23151525400312), we get a palindrome (44451977915444).

The spelling of 21300452515132 in words is "twenty-one trillion, three hundred billion, four hundred fifty-two million, five hundred fifteen thousand, one hundred thirty-two".