121223223231103 has 12 divisors (see below), whose sum is σ = 141440796395112. Its totient is φ = 103591705638960.

The previous prime is 121223223231083. The next prime is 121223223231109. The reversal of 121223223231103 is 301132322322121.

It is not a de Polignac number, because 121223223231103 - 2²¹ = 121223221133951 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 (121223223231109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3737058300 + ... + 3737090737.

It is an arithmetic number, because the mean of its divisors is an integer number (11786733032926).

Almost surely, 2^{121223223231103} is an apocalyptic number.

121223223231103 is a deficient number, since it is larger than the sum of its proper divisors (20217573164009).

121223223231103 is an equidigital number, since it uses as much as digits as its factorization.

121223223231103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7474149382 (or 7474149375 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 121223223231103 its reverse (301132322322121), we get a palindrome (422355545553224).

The spelling of 121223223231103 in words is "one hundred twenty-one trillion, two hundred twenty-three billion, two hundred twenty-three million, two hundred thirty-one thousand, one hundred three".