121112021013103 has 16 divisors (see below), whose sum is σ = 125129545679520. Its totient is φ = 117135643936896.

The previous prime is 121112021013097. The next prime is 121112021013133. The reversal of 121112021013103 is 301310120211121.

It is a cyclic number.

It is not a de Polignac number, because 121112021013103 - 2¹³ = 121112021004911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112021013133) 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, 9324900 + ... + 18143257.

It is an arithmetic number, because the mean of its divisors is an integer number (7820596604970).

Almost surely, 2^{121112021013103} is an apocalyptic number.

121112021013103 is a deficient number, since it is larger than the sum of its proper divisors (4017524666417).

121112021013103 is a wasteful number, since it uses less digits than its factorization.

121112021013103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27468906.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 121112021013103 its reverse (301310120211121), we get a palindrome (422422141224224).

The spelling of 121112021013103 in words is "one hundred twenty-one trillion, one hundred twelve billion, twenty-one million, thirteen thousand, one hundred three".