21133111341 has 8 divisors (see below), whose sum is σ = 28300528480. Its totient is φ = 14027217552.

The previous prime is 21133111331. The next prime is 21133111343. The reversal of 21133111341 is 14311133112.

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

It is not a de Polignac number, because 21133111341 - 2²² = 21128917037 is a prime.

It is a super-2 number, since 2×21133111341² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21133111343) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 15380035 + ... + 15381408.

It is an arithmetic number, because the mean of its divisors is an integer number (3537566060).

Almost surely, 2^21133111341 is an apocalyptic number.

It is an amenable number.

21133111341 is a deficient number, since it is larger than the sum of its proper divisors (7167417139).

21133111341 is a wasteful number, since it uses less digits than its factorization.

21133111341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30761675.

The product of its digits is 216, while the sum is 21.

Adding to 21133111341 its reverse (14311133112), we get a palindrome (35444244453).

The spelling of 21133111341 in words is "twenty-one billion, one hundred thirty-three million, one hundred eleven thousand, three hundred forty-one".