21132232311 has 16 divisors (see below), whose sum is σ = 28829704320. Its totient is φ = 13764388320.

The previous prime is 21132232301. The next prime is 21132232321. The reversal of 21132232311 is 11323223112.

It is an interprime number because it is at equal distance from previous prime (21132232301) and next prime (21132232321).

It is not a de Polignac number, because 21132232311 - 2²² = 21128038007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21132232301) 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 15 ways as a sum of consecutive naturals, for example, 337380 + ... + 395081.

It is an arithmetic number, because the mean of its divisors is an integer number (1801856520).

Almost surely, 2^21132232311 is an apocalyptic number.

21132232311 is a deficient number, since it is larger than the sum of its proper divisors (7697472009).

21132232311 is a wasteful number, since it uses less digits than its factorization.

21132232311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732686.

The product of its digits is 432, while the sum is 21.

Adding to 21132232311 its reverse (11323223112), we get a palindrome (32455455423).

The spelling of 21132232311 in words is "twenty-one billion, one hundred thirty-two million, two hundred thirty-two thousand, three hundred eleven".