21314101121101 has 4 divisors (see below), whose sum is σ = 21315441562204. Its totient is φ = 21312760680000.

The previous prime is 21314101121099. The next prime is 21314101121113. The reversal of 21314101121101 is 10112110141312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12636958522500 + 8677142598601 = 3554850^2 + 2945699^2 .

It is a cyclic number.

It is not a de Polignac number, because 21314101121101 - 2¹ = 21314101121099 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 (21314101121161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670196700 + ... + 670228501.

It is an arithmetic number, because the mean of its divisors is an integer number (5328860390551).

Almost surely, 2^{21314101121101} is an apocalyptic number.

It is an amenable number.

21314101121101 is a deficient number, since it is larger than the sum of its proper divisors (1340441103).

21314101121101 is a wasteful number, since it uses less digits than its factorization.

21314101121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340441102.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 21314101121101 its reverse (10112110141312), we get a palindrome (31426211262413).

The spelling of 21314101121101 in words is "twenty-one trillion, three hundred fourteen billion, one hundred one million, one hundred twenty-one thousand, one hundred one".