21112231132 has 6 divisors (see below), whose sum is σ = 36946404488. Its totient is φ = 10556115564.

The previous prime is 21112231079. The next prime is 21112231169. The reversal of 21112231132 is 23113221112.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2639028888 + ... + 2639028895.

Almost surely, 2^21112231132 is an apocalyptic number.

It is an amenable number.

21112231132 is a deficient number, since it is larger than the sum of its proper divisors (15834173356).

21112231132 is a wasteful number, since it uses less digits than its factorization.

21112231132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5278057787 (or 5278057785 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

Adding to 21112231132 its reverse (23113221112), we get a palindrome (44225452244).

The spelling of 21112231132 in words is "twenty-one billion, one hundred twelve million, two hundred thirty-one thousand, one hundred thirty-two".