21132232011 has 24 divisors (see below), whose sum is σ = 33305727936. Its totient is φ = 12804931440.

The previous prime is 21132231997. The next prime is 21132232021. The reversal of 21132232011 is 11023223112.

21132232011 is a `hidden beast` number, since 2 + 11 + 322 + 320 + 11 = 666.

It is not a de Polignac number, because 21132232011 - 2¹⁴ = 21132215627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21132232021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 580596 + ... + 615918.

It is an arithmetic number, because the mean of its divisors is an integer number (1387738664).

Almost surely, 2^21132232011 is an apocalyptic number.

21132232011 is a deficient number, since it is larger than the sum of its proper divisors (12173495925).

21132232011 is a wasteful number, since it uses less digits than its factorization.

21132232011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41383 (or 41380 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21132232011 its reverse (11023223112), we get a palindrome (32155455123).

The spelling of 21132232011 in words is "twenty-one billion, one hundred thirty-two million, two hundred thirty-two thousand, eleven".