121103013 has 4 divisors (see below), whose sum is σ = 161470688. Its totient is φ = 80735340.

The previous prime is 121102999. The next prime is 121103023. The reversal of 121103013 is 310301121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 121103013 - 2¹⁰ = 121101989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121103013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121103023) 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, 20183833 + ... + 20183838.

It is an arithmetic number, because the mean of its divisors is an integer number (40367672).

Almost surely, 2^121103013 is an apocalyptic number.

It is an amenable number.

121103013 is a deficient number, since it is larger than the sum of its proper divisors (40367675).

121103013 is an equidigital number, since it uses as much as digits as its factorization.

121103013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40367674.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 121103013 is about 11004.6814129260. The cubic root of 121103013 is about 494.7490657529.

Adding to 121103013 its reverse (310301121), we get a palindrome (431404134).

The spelling of 121103013 in words is "one hundred twenty-one million, one hundred three thousand, thirteen".