21441401341 has 2 divisors, whose sum is σ = 21441401342. Its totient is φ = 21441401340.

The previous prime is 21441401309. The next prime is 21441401347. The reversal of 21441401341 is 14310414412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21104825625 + 336575716 = 145275^2 + 18346^2 .

It is a cyclic number.

It is not a de Polignac number, because 21441401341 - 2⁵ = 21441401309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21441401347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10720700670 + 10720700671.

It is an arithmetic number, because the mean of its divisors is an integer number (10720700671).

Almost surely, 2^21441401341 is an apocalyptic number.

It is an amenable number.

21441401341 is a deficient number, since it is larger than the sum of its proper divisors (1).

21441401341 is an equidigital number, since it uses as much as digits as its factorization.

21441401341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 21441401341 its reverse (14310414412), we get a palindrome (35751815753).

The spelling of 21441401341 in words is "twenty-one billion, four hundred forty-one million, four hundred one thousand, three hundred forty-one".