21214036430361 has 24 divisors (see below), whose sum is σ = 31356497908736. Its totient is φ = 13813181151840.

The previous prime is 21214036430333. The next prime is 21214036430383. The reversal of 21214036430361 is 16303463041212.

21214036430361 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 4 + 0 + 3 + 643 + 0 + 3 + 6 + 1 = 666.

It is not a de Polignac number, because 21214036430361 - 2⁵ = 21214036430329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21214036434361) 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, 7648296 + ... + 10046118.

Almost surely, 2^{21214036430361} is an apocalyptic number.

It is an amenable number.

21214036430361 is a deficient number, since it is larger than the sum of its proper divisors (10142461478375).

21214036430361 is a wasteful number, since it uses less digits than its factorization.

21214036430361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2420733 (or 2420730 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

Adding to 21214036430361 its reverse (16303463041212), we get a palindrome (37517499471573).

The spelling of 21214036430361 in words is "twenty-one trillion, two hundred fourteen billion, thirty-six million, four hundred thirty thousand, three hundred sixty-one".