21101342121303 has 8 divisors (see below), whose sum is σ = 28895531553648. Its totient is φ = 13687357051584.

The previous prime is 21101342121253. The next prime is 21101342121341. The reversal of 21101342121303 is 30312124310112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21101342121303 - 2¹⁴ = 21101342104919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21101342126303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95051090526 + ... + 95051090747.

It is an arithmetic number, because the mean of its divisors is an integer number (3611941444206).

Almost surely, 2^{21101342121303} is an apocalyptic number.

21101342121303 is a deficient number, since it is larger than the sum of its proper divisors (7794189432345).

21101342121303 is a wasteful number, since it uses less digits than its factorization.

21101342121303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190102181313.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 21101342121303 its reverse (30312124310112), we get a palindrome (51413466431415).

The spelling of 21101342121303 in words is "twenty-one trillion, one hundred one billion, three hundred forty-two million, one hundred twenty-one thousand, three hundred three".