21354550401411 has 12 divisors (see below), whose sum is σ = 30846819202992. Its totient is φ = 14235740390256.

The previous prime is 21354550401389. The next prime is 21354550401433. The reversal of 21354550401411 is 11410405545312.

21354550401411 is a `hidden beast` number, since 2 + 1 + 3 + 5 + 4 + 5 + 504 + 0 + 141 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (21354550401389) and next prime (21354550401433).

It is not a de Polignac number, because 21354550401411 - 2²² = 21354546207107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21354550401011) 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, 51996096 + ... + 52405181.

It is an arithmetic number, because the mean of its divisors is an integer number (2570568266916).

Almost surely, 2^{21354550401411} is an apocalyptic number.

21354550401411 is a deficient number, since it is larger than the sum of its proper divisors (9492268801581).

21354550401411 is a wasteful number, since it uses less digits than its factorization.

21354550401411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104424010 (or 104424007 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

Adding to 21354550401411 its reverse (11410405545312), we get a palindrome (32764955946723).

The spelling of 21354550401411 in words is "twenty-one trillion, three hundred fifty-four billion, five hundred fifty million, four hundred one thousand, four hundred eleven".