21441214413 has 6 divisors (see below), whose sum is σ = 30970643054. Its totient is φ = 14294142936.

The previous prime is 21441214393. The next prime is 21441214433. The reversal of 21441214413 is 31441214412.

21441214413 is a `hidden beast` number, since 2 + 1 + 441 + 214 + 4 + 1 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (21441214393) and next prime (21441214433).

It can be written as a sum of positive squares in only one way, i.e., 16729352964 + 4711861449 = 129342^2 + 68643^2 .

It is not a de Polignac number, because 21441214413 - 2¹³ = 21441206221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21441214433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1191178570 + ... + 1191178587.

Almost surely, 2^21441214413 is an apocalyptic number.

It is an amenable number.

21441214413 is a deficient number, since it is larger than the sum of its proper divisors (9529428641).

21441214413 is a wasteful number, since it uses less digits than its factorization.

21441214413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382357163 (or 2382357160 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

Adding to 21441214413 its reverse (31441214412), we get a palindrome (52882428825).

Subtracting 21441214413 from its reverse (31441214412), we obtain a palindrome (9999999999).

The spelling of 21441214413 in words is "twenty-one billion, four hundred forty-one million, two hundred fourteen thousand, four hundred thirteen".