21411022011413 has 2 divisors, whose sum is σ = 21411022011414. Its totient is φ = 21411022011412.

The previous prime is 21411022011409. The next prime is 21411022011439. The reversal of 21411022011413 is 31411022011412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17846848049809 + 3564173961604 = 4224553^2 + 1887902^2 .

It is a cyclic number.

It is not a de Polignac number, because 21411022011413 - 2² = 21411022011409 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21411022011013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10705511005706 + 10705511005707.

It is an arithmetic number, because the mean of its divisors is an integer number (10705511005707).

Almost surely, 2^{21411022011413} is an apocalyptic number.

It is an amenable number.

21411022011413 is a deficient number, since it is larger than the sum of its proper divisors (1).

21411022011413 is an equidigital number, since it uses as much as digits as its factorization.

21411022011413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 21411022011413 its reverse (31411022011412), we get a palindrome (52822044022825).

Subtracting 21411022011413 from its reverse (31411022011412), we obtain a palindrome (9999999999999).

The spelling of 21411022011413 in words is "twenty-one trillion, four hundred eleven billion, twenty-two million, eleven thousand, four hundred thirteen".