21132034441 has 24 divisors (see below), whose sum is σ = 25969692480. Its totient is φ = 17097689952.

The previous prime is 21132034439. The next prime is 21132034457. The reversal of 21132034441 is 14443023112.

It is not a de Polignac number, because 21132034441 - 2¹ = 21132034439 is a prime.

It is a super-2 number, since 2×21132034441² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21132034141) 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, 216916 + ... + 298858.

It is an arithmetic number, because the mean of its divisors is an integer number (1082070520).

Almost surely, 2^21132034441 is an apocalyptic number.

It is an amenable number.

21132034441 is a deficient number, since it is larger than the sum of its proper divisors (4837658039).

21132034441 is a wasteful number, since it uses less digits than its factorization.

21132034441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82253 (or 82246 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 21132034441 its reverse (14443023112), we get a palindrome (35575057553).

The spelling of 21132034441 in words is "twenty-one billion, one hundred thirty-two million, thirty-four thousand, four hundred forty-one".