121111001122103 has 16 divisors (see below), whose sum is σ = 126484318755840. Its totient is φ = 115746666989184.

The previous prime is 121111001122061. The next prime is 121111001122109. The reversal of 121111001122103 is 301221100111121.

It is a cyclic number.

It is not a de Polignac number, because 121111001122103 - 2⁴⁰ = 120011489494327 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 (121111001122109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 369743663 + ... + 370071071.

It is an arithmetic number, because the mean of its divisors is an integer number (7905269922240).

Almost surely, 2^{121111001122103} is an apocalyptic number.

121111001122103 is a deficient number, since it is larger than the sum of its proper divisors (5373317633737).

121111001122103 is a wasteful number, since it uses less digits than its factorization.

121111001122103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341078.

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

Adding to 121111001122103 its reverse (301221100111121), we get a palindrome (422332101233224).

The spelling of 121111001122103 in words is "one hundred twenty-one trillion, one hundred eleven billion, one million, one hundred twenty-two thousand, one hundred three".