21033231341 has 2 divisors, whose sum is σ = 21033231342. Its totient is φ = 21033231340.

The previous prime is 21033231293. The next prime is 21033231343. The reversal of 21033231341 is 14313233012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14115816100 + 6917415241 = 118810^2 + 83171^2 .

It is a cyclic number.

It is not a de Polignac number, because 21033231341 - 2⁶ = 21033231277 is a prime.

Together with 21033231343, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21033231343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10516615670 + 10516615671.

It is an arithmetic number, because the mean of its divisors is an integer number (10516615671).

Almost surely, 2^21033231341 is an apocalyptic number.

It is an amenable number.

21033231341 is a deficient number, since it is larger than the sum of its proper divisors (1).

21033231341 is an equidigital number, since it uses as much as digits as its factorization.

21033231341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 21033231341 its reverse (14313233012), we get a palindrome (35346464353).

The spelling of 21033231341 in words is "twenty-one billion, thirty-three million, two hundred thirty-one thousand, three hundred forty-one".