21203022341 has 2 divisors, whose sum is σ = 21203022342. Its totient is φ = 21203022340.

The previous prime is 21203022299. The next prime is 21203022371. The reversal of 21203022341 is 14322030212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21190624900 + 12397441 = 145570^2 + 3521^2 .

It is a cyclic number.

It is not a de Polignac number, because 21203022341 - 2⁶ = 21203022277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21203022371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10601511170 + 10601511171.

It is an arithmetic number, because the mean of its divisors is an integer number (10601511171).

Almost surely, 2^21203022341 is an apocalyptic number.

It is an amenable number.

21203022341 is a deficient number, since it is larger than the sum of its proper divisors (1).

21203022341 is an equidigital number, since it uses as much as digits as its factorization.

21203022341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21203022341 its reverse (14322030212), we get a palindrome (35525052553).

The spelling of 21203022341 in words is "twenty-one billion, two hundred three million, twenty-two thousand, three hundred forty-one".