121130111223 has 96 divisors (see below), whose sum is σ = 202305392640. Its totient is φ = 69148907520.

The previous prime is 121130111183. The next prime is 121130111227. The reversal of 121130111223 is 322111031121.

It is not a de Polignac number, because 121130111223 - 2²⁰ = 121129062647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121130111196 and 121130111205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121130111227) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 47631490 + ... + 47634032.

It is an arithmetic number, because the mean of its divisors is an integer number (2107347840).

Almost surely, 2^121130111223 is an apocalyptic number.

121130111223 is a deficient number, since it is larger than the sum of its proper divisors (81175281417).

121130111223 is a wasteful number, since it uses less digits than its factorization.

121130111223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2989 (or 2986 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 121130111223 its reverse (322111031121), we get a palindrome (443241142344).

The spelling of 121130111223 in words is "one hundred twenty-one billion, one hundred thirty million, one hundred eleven thousand, two hundred twenty-three".