21113233231332 has 48 divisors (see below), whose sum is σ = 53743286790144. Its totient is φ = 6397888596000.

The previous prime is 21113233231319. The next prime is 21113233231357. The reversal of 21113233231332 is 23313233231112.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 21113233231332.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14289957 + ... + 15698067.

It is an arithmetic number, because the mean of its divisors is an integer number (1119651808128).

Almost surely, 2^{21113233231332} is an apocalyptic number.

21113233231332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21113233231332 is an abundant number, since it is smaller than the sum of its proper divisors (32630053558812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21113233231332 is a wasteful number, since it uses less digits than its factorization.

21113233231332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521720 (or 1521718 counting only the distinct ones).

The product of its digits is 11664, while the sum is 30.

Adding to 21113233231332 its reverse (23313233231112), we get a palindrome (44426466462444).

The spelling of 21113233231332 in words is "twenty-one trillion, one hundred thirteen billion, two hundred thirty-three million, two hundred thirty-one thousand, three hundred thirty-two".