21132110541 has 8 divisors (see below), whose sum is σ = 28177074720. Its totient is φ = 14087610032.

The previous prime is 21132110537. The next prime is 21132110557. The reversal of 21132110541 is 14501123112.

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 21132110541 - 2² = 21132110537 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21132110561) 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 7 ways as a sum of consecutive naturals, for example, 9955 + ... + 205823.

It is an arithmetic number, because the mean of its divisors is an integer number (3522134340).

Almost surely, 2^21132110541 is an apocalyptic number.

It is an amenable number.

21132110541 is a deficient number, since it is larger than the sum of its proper divisors (7044964179).

21132110541 is a wasteful number, since it uses less digits than its factorization.

21132110541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231835.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 21132110541 its reverse (14501123112), we get a palindrome (35633233653).

The spelling of 21132110541 in words is "twenty-one billion, one hundred thirty-two million, one hundred ten thousand, five hundred forty-one".