121103133231 has 8 divisors (see below), whose sum is σ = 161473089664. Its totient is φ = 80734299480.

The previous prime is 121103133211. The next prime is 121103133253. The reversal of 121103133231 is 132331301121.

It is a happy number.

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

It is not a de Polignac number, because 121103133231 - 2⁹ = 121103132719 is a prime.

It is a super-2 number, since 2×121103133231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121103133198 and 121103133207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121103133211) 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 7 ways as a sum of consecutive naturals, for example, 15750 + ... + 492396.

It is an arithmetic number, because the mean of its divisors is an integer number (20184136208).

Almost surely, 2^121103133231 is an apocalyptic number.

121103133231 is a deficient number, since it is larger than the sum of its proper divisors (40369956433).

121103133231 is an equidigital number, since it uses as much as digits as its factorization.

121103133231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561341.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 121103133231 its reverse (132331301121), we get a palindrome (253434434352).

The spelling of 121103133231 in words is "one hundred twenty-one billion, one hundred three million, one hundred thirty-three thousand, two hundred thirty-one".