121103131 has 8 divisors (see below), whose sum is σ = 129224720. Its totient is φ = 113156352.

The previous prime is 121103123. The next prime is 121103153. The reversal of 121103131 is 131301121.

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 121103131 - 2³ = 121103123 is a prime.

It is a super-2 number, since 2×121103131² = 29331936676006322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121103111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42270 + ... + 45043.

It is an arithmetic number, because the mean of its divisors is an integer number (16153090).

Almost surely, 2^121103131 is an apocalyptic number.

121103131 is a deficient number, since it is larger than the sum of its proper divisors (8121589).

121103131 is an equidigital number, since it uses as much as digits as its factorization.

121103131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87405.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 121103131 is about 11004.6867742794. The cubic root of 121103131 is about 494.7492264436.

Adding to 121103131 its reverse (131301121), we get a palindrome (252404252).

The spelling of 121103131 in words is "one hundred twenty-one million, one hundred three thousand, one hundred thirty-one".