21231133341 has 32 divisors (see below), whose sum is σ = 31912911360. Its totient is φ = 12443592000.

The previous prime is 21231133333. The next prime is 21231133351. The reversal of 21231133341 is 14333113212.

It is not a de Polignac number, because 21231133341 - 2³ = 21231133333 is a prime.

It is a super-2 number, since 2×21231133341² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21231133351) 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 31 ways as a sum of consecutive naturals, for example, 69250 + ... + 217388.

It is an arithmetic number, because the mean of its divisors is an integer number (997278480).

Almost surely, 2^21231133341 is an apocalyptic number.

It is an amenable number.

21231133341 is a deficient number, since it is larger than the sum of its proper divisors (10681778019).

21231133341 is a wasteful number, since it uses less digits than its factorization.

21231133341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148297.

The product of its digits is 1296, while the sum is 24.

Adding to 21231133341 its reverse (14333113212), we get a palindrome (35564246553).

The spelling of 21231133341 in words is "twenty-one billion, two hundred thirty-one million, one hundred thirty-three thousand, three hundred forty-one".