21411313141 has 2 divisors, whose sum is σ = 21411313142. Its totient is φ = 21411313140.

The previous prime is 21411313127. The next prime is 21411313201. The reversal of 21411313141 is 14131311412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13817062116 + 7594251025 = 117546^2 + 87145^2 .

It is a cyclic number.

It is not a de Polignac number, because 21411313141 - 2¹¹ = 21411311093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21411313741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10705656570 + 10705656571.

It is an arithmetic number, because the mean of its divisors is an integer number (10705656571).

Almost surely, 2^21411313141 is an apocalyptic number.

It is an amenable number.

21411313141 is a deficient number, since it is larger than the sum of its proper divisors (1).

21411313141 is an equidigital number, since it uses as much as digits as its factorization.

21411313141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 22.

Adding to 21411313141 its reverse (14131311412), we get a palindrome (35542624553).

The spelling of 21411313141 in words is "twenty-one billion, four hundred eleven million, three hundred thirteen thousand, one hundred forty-one".