21232323122 has 8 divisors (see below), whose sum is σ = 31963461996. Its totient is φ = 10577835792.

The previous prime is 21232323103. The next prime is 21232323143. The reversal of 21232323122 is 22132323212.

It can be written as a sum of positive squares in 2 ways, for example, as 15091876801 + 6140446321 = 122849^2 + 78361^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19162193 + ... + 19163300.

Almost surely, 2^21232323122 is an apocalyptic number.

21232323122 is a deficient number, since it is larger than the sum of its proper divisors (10731138874).

21232323122 is a wasteful number, since it uses less digits than its factorization.

21232323122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38325772.

The product of its digits is 1728, while the sum is 23.

Adding to 21232323122 its reverse (22132323212), we get a palindrome (43364646334).

The spelling of 21232323122 in words is "twenty-one billion, two hundred thirty-two million, three hundred twenty-three thousand, one hundred twenty-two".