21036134601 has 48 divisors (see below), whose sum is σ = 32188287040. Its totient is φ = 13238453376.

The previous prime is 21036134569. The next prime is 21036134633. The reversal of 21036134601 is 10643163012.

21036134601 is a `hidden beast` number, since 2 + 1 + 0 + 3 + 613 + 46 + 0 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (21036134569) and next prime (21036134633).

It is not a de Polignac number, because 21036134601 - 2⁵ = 21036134569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21036134641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26729130 + ... + 26729916.

Almost surely, 2^21036134601 is an apocalyptic number.

It is an amenable number.

21036134601 is a deficient number, since it is larger than the sum of its proper divisors (11152152439).

21036134601 is an equidigital number, since it uses as much as digits as its factorization.

21036134601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283 (or 1242 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 21036134601 its reverse (10643163012), we get a palindrome (31679297613).

The spelling of 21036134601 in words is "twenty-one billion, thirty-six million, one hundred thirty-four thousand, six hundred one".