21122311341 has 4 divisors (see below), whose sum is σ = 28163081792. Its totient is φ = 14081540892.

The previous prime is 21122311333. The next prime is 21122311361. The reversal of 21122311341 is 14311322112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 21122311341 - 2³ = 21122311333 is a prime.

It is a super-2 number, since 2×21122311341² (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 (21122311321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3520385221 + ... + 3520385226.

It is an arithmetic number, because the mean of its divisors is an integer number (7040770448).

Almost surely, 2^21122311341 is an apocalyptic number.

It is an amenable number.

21122311341 is a deficient number, since it is larger than the sum of its proper divisors (7040770451).

21122311341 is an equidigital number, since it uses as much as digits as its factorization.

21122311341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7040770450.

The product of its digits is 288, while the sum is 21.

Adding to 21122311341 its reverse (14311322112), we get a palindrome (35433633453).

The spelling of 21122311341 in words is "twenty-one billion, one hundred twenty-two million, three hundred eleven thousand, three hundred forty-one".