21414004111 has 12 divisors (see below), whose sum is σ = 22402591848. Its totient is φ = 20467347824.

The previous prime is 21414004099. The next prime is 21414004121. The reversal of 21414004111 is 11140041412.

It is not a de Polignac number, because 21414004111 - 2¹⁵ = 21413971343 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 (21414004121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 711576 + ... + 741058.

It is an arithmetic number, because the mean of its divisors is an integer number (1866882654).

Almost surely, 2^21414004111 is an apocalyptic number.

21414004111 is a deficient number, since it is larger than the sum of its proper divisors (988587737).

21414004111 is a wasteful number, since it uses less digits than its factorization.

21414004111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30902 (or 30879 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 21414004111 its reverse (11140041412), we get a palindrome (32554045523).

The spelling of 21414004111 in words is "twenty-one billion, four hundred fourteen million, four thousand, one hundred eleven".