121230311103 has 24 divisors (see below), whose sum is σ = 193175994960. Its totient is φ = 72647372160.

The previous prime is 121230311077. The next prime is 121230311171. The reversal of 121230311103 is 301113032121.

121230311103 is a `hidden beast` number, since 1 + 21 + 230 + 311 + 103 = 666.

It is not a de Polignac number, because 121230311103 - 2¹³ = 121230302911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121230311173) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6870676 + ... + 6888297.

It is an arithmetic number, because the mean of its divisors is an integer number (8048999790).

Almost surely, 2^121230311103 is an apocalyptic number.

121230311103 is a deficient number, since it is larger than the sum of its proper divisors (71945683857).

121230311103 is a wasteful number, since it uses less digits than its factorization.

121230311103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13759079 (or 13759076 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 121230311103 its reverse (301113032121), we get a palindrome (422343343224).

The spelling of 121230311103 in words is "one hundred twenty-one billion, two hundred thirty million, three hundred eleven thousand, one hundred three".