21323132112232 has 16 divisors (see below), whose sum is σ = 39980928101760. Its totient is φ = 10661551285104.

The previous prime is 21323132112179. The next prime is 21323132112241. The reversal of 21323132112232 is 23221123132312.

It is a self number, because there is not a number n which added to its sum of digits gives 21323132112232.

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 3 ways as a sum of consecutive naturals, for example, 6517513 + ... + 9226279.

It is an arithmetic number, because the mean of its divisors is an integer number (2498808006360).

Almost surely, 2^{21323132112232} is an apocalyptic number.

It is an amenable number.

21323132112232 is a deficient number, since it is larger than the sum of its proper divisors (18657795989528).

21323132112232 is a wasteful number, since it uses less digits than its factorization.

21323132112232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3692760 (or 3692756 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

Adding to 21323132112232 its reverse (23221123132312), we get a palindrome (44544255244544).

The spelling of 21323132112232 in words is "twenty-one trillion, three hundred twenty-three billion, one hundred thirty-two million, one hundred twelve thousand, two hundred thirty-two".