121103013121203 has 8 divisors (see below), whose sum is σ = 161980055406288. Its totient is φ = 80480656458464.

The previous prime is 121103013121199. The next prime is 121103013121217. The reversal of 121103013121203 is 302121310301121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121103013121203 - 2² = 121103013121199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121103013121203.

It is not an unprimeable number, because it can be changed into a prime (121103013121403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63671404476 + ... + 63671406377.

It is an arithmetic number, because the mean of its divisors is an integer number (20247506925786).

Almost surely, 2^{121103013121203} is an apocalyptic number.

121103013121203 is a deficient number, since it is larger than the sum of its proper divisors (40877042285085).

121103013121203 is a wasteful number, since it uses less digits than its factorization.

121103013121203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127342811173.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 121103013121203 its reverse (302121310301121), we get a palindrome (423224323422324).

The spelling of 121103013121203 in words is "one hundred twenty-one trillion, one hundred three billion, thirteen million, one hundred twenty-one thousand, two hundred three".