201121101121103 has 8 divisors (see below), whose sum is σ = 213373401937920. Its totient is φ = 189035498274840.

The previous prime is 201121101121093. The next prime is 201121101121133. The reversal of 201121101121103 is 301121101121102.

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

It is a cyclic number.

It is not a de Polignac number, because 201121101121103 - 2⁸ = 201121101120847 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 (201121101121133) 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, 41674490153 + ... + 41674494978.

It is an arithmetic number, because the mean of its divisors is an integer number (26671675242240).

Almost surely, 2^{201121101121103} is an apocalyptic number.

201121101121103 is a deficient number, since it is larger than the sum of its proper divisors (12252300816817).

201121101121103 is a wasteful number, since it uses less digits than its factorization.

201121101121103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83348985277.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 201121101121103 its reverse (301121101121102), we get a palindrome (502242202242205).

Subtracting 201121101121103 from its reverse (301121101121102), we obtain a palindrome (99999999999999).

The spelling of 201121101121103 in words is "two hundred one trillion, one hundred twenty-one billion, one hundred one million, one hundred twenty-one thousand, one hundred three".