21413411211 has 16 divisors (see below), whose sum is σ = 29017958400. Its totient is φ = 14043133440.

The previous prime is 21413411209. The next prime is 21413411213. The reversal of 21413411211 is 11211431412.

It is an interprime number because it is at equal distance from previous prime (21413411209) and next prime (21413411213).

It is not a de Polignac number, because 21413411211 - 2¹ = 21413411209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21413411213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16315 + ... + 207588.

It is an arithmetic number, because the mean of its divisors is an integer number (1813622400).

Almost surely, 2^21413411211 is an apocalyptic number.

21413411211 is a deficient number, since it is larger than the sum of its proper divisors (7604547189).

21413411211 is a wasteful number, since it uses less digits than its factorization.

21413411211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224426.

The product of its digits is 192, while the sum is 21.

Adding to 21413411211 its reverse (11211431412), we get a palindrome (32624842623).

The spelling of 21413411211 in words is "twenty-one billion, four hundred thirteen million, four hundred eleven thousand, two hundred eleven".