21413001201111 has 72 divisors (see below), whose sum is σ = 34129402922160. Its totient is φ = 12926579208192.

The previous prime is 21413001201091. The next prime is 21413001201149. The reversal of 21413001201111 is 11110210031412.

21413001201111 is a `hidden beast` number, since 21 + 413 + 0 + 0 + 120 + 1 + 111 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-21413001201111 is a prime.

It is a super-2 number, since 2×21413001201111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21413001201181) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 634649280 + ... + 634683018.

It is an arithmetic number, because the mean of its divisors is an integer number (474019485030).

Almost surely, 2^{21413001201111} is an apocalyptic number.

21413001201111 is a deficient number, since it is larger than the sum of its proper divisors (12716401721049).

21413001201111 is a wasteful number, since it uses less digits than its factorization.

21413001201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41697 (or 41681 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 21413001201111 its reverse (11110210031412), we get a palindrome (32523211232523).

The spelling of 21413001201111 in words is "twenty-one trillion, four hundred thirteen billion, one million, two hundred one thousand, one hundred eleven".