21027552130513 has 8 divisors (see below), whose sum is σ = 22143445981920. Its totient is φ = 19912576337280.

The previous prime is 21027552130477. The next prime is 21027552130537. The reversal of 21027552130513 is 31503125572012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21027552130513 - 2¹³ = 21027552122321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21027552130313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229467520 + ... + 229559137.

It is an arithmetic number, because the mean of its divisors is an integer number (2767930747740).

Almost surely, 2^{21027552130513} is an apocalyptic number.

It is an amenable number.

21027552130513 is a deficient number, since it is larger than the sum of its proper divisors (1115893851407).

21027552130513 is a wasteful number, since it uses less digits than its factorization.

21027552130513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459029087.

The product of its (nonzero) digits is 63000, while the sum is 37.

The spelling of 21027552130513 in words is "twenty-one trillion, twenty-seven billion, five hundred fifty-two million, one hundred thirty thousand, five hundred thirteen".