21300442004331 has 24 divisors (see below), whose sum is σ = 35164196152800. Its totient is φ = 12171140545536.

The previous prime is 21300442004251. The next prime is 21300442004339. The reversal of 21300442004331 is 13340024400312.

21300442004331 is a `hidden beast` number, since 2 + 1 + 300 + 4 + 4 + 20 + 0 + 4 + 331 = 666.

It is not a de Polignac number, because 21300442004331 - 2²¹ = 21300439907179 is a prime.

It is a super-2 number, since 2×21300442004331² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21300442004295 and 21300442004304.

It is not an unprimeable number, because it can be changed into a prime (21300442004339) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6076470 + ... + 8917643.

It is an arithmetic number, because the mean of its divisors is an integer number (1465174839700).

Almost surely, 2^{21300442004331} is an apocalyptic number.

21300442004331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

21300442004331 is a deficient number, since it is larger than the sum of its proper divisors (13863754148469).

21300442004331 is a wasteful number, since it uses less digits than its factorization.

21300442004331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15016675 (or 15016672 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 21300442004331 its reverse (13340024400312), we get a palindrome (34640466404643).

The spelling of 21300442004331 in words is "twenty-one trillion, three hundred billion, four hundred forty-two million, four thousand, three hundred thirty-one".