121023201103 has 16 divisors (see below), whose sum is σ = 142069657600. Its totient is φ = 103047147000.

The previous prime is 121023201077. The next prime is 121023201149. The reversal of 121023201103 is 301102320121.

It is a de Polignac number, because none of the positive numbers 2^k-121023201103 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 (121023202103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1116543 + ... + 1220128.

It is an arithmetic number, because the mean of its divisors is an integer number (8879353600).

Almost surely, 2^121023201103 is an apocalyptic number.

121023201103 is a deficient number, since it is larger than the sum of its proper divisors (21046456497).

121023201103 is an equidigital number, since it uses as much as digits as its factorization.

121023201103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2336843 (or 2336829 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 121023201103 its reverse (301102320121), we get a palindrome (422125521224).

The spelling of 121023201103 in words is "one hundred twenty-one billion, twenty-three million, two hundred one thousand, one hundred three".