121313232103 has 6 divisors (see below), whose sum is σ = 141119474136. Its totient is φ = 103982770332.

The previous prime is 121313232101. The next prime is 121313232127. The reversal of 121313232103 is 301232313121.

It is not a de Polignac number, because 121313232103 - 2¹ = 121313232101 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 (121313232101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1237890075 + ... + 1237890172.

It is an arithmetic number, because the mean of its divisors is an integer number (23519912356).

Almost surely, 2^121313232103 is an apocalyptic number.

121313232103 is a deficient number, since it is larger than the sum of its proper divisors (19806242033).

121313232103 is an equidigital number, since it uses as much as digits as its factorization.

121313232103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2475780261 (or 2475780254 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 121313232103 its reverse (301232313121), we get a palindrome (422545545224).

The spelling of 121313232103 in words is "one hundred twenty-one billion, three hundred thirteen million, two hundred thirty-two thousand, one hundred three".