121011121303 has 4 divisors (see below), whose sum is σ = 121113587448. Its totient is φ = 120908655160.

The previous prime is 121011121279. The next prime is 121011121307. The reversal of 121011121303 is 303121110121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121011121303 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 (121011121307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51231301 + ... + 51233662.

It is an arithmetic number, because the mean of its divisors is an integer number (30278396862).

Almost surely, 2^121011121303 is an apocalyptic number.

121011121303 is a deficient number, since it is larger than the sum of its proper divisors (102466145).

121011121303 is a wasteful number, since it uses less digits than its factorization.

121011121303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102466144.

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

Adding to 121011121303 its reverse (303121110121), we get a palindrome (424132231424).

The spelling of 121011121303 in words is "one hundred twenty-one billion, eleven million, one hundred twenty-one thousand, three hundred three".