121111230103 has 4 divisors (see below), whose sum is σ = 121113588240. Its totient is φ = 121108871968.

The previous prime is 121111230089. The next prime is 121111230143. The reversal of 121111230103 is 301032111121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301032111121 = 7 ⋅43004587303.

It is a cyclic number.

It is not a de Polignac number, because 121111230103 - 2¹³ = 121111221911 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 (121111230143) 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, 1100275 + ... + 1205332.

It is an arithmetic number, because the mean of its divisors is an integer number (30278397060).

Almost surely, 2^121111230103 is an apocalyptic number.

121111230103 is a deficient number, since it is larger than the sum of its proper divisors (2358137).

121111230103 is an equidigital number, since it uses as much as digits as its factorization.

121111230103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2358136.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 121111230103 its reverse (301032111121), we get a palindrome (422143341224).

The spelling of 121111230103 in words is "one hundred twenty-one billion, one hundred eleven million, two hundred thirty thousand, one hundred three".