121313232321103 has 4 divisors (see below), whose sum is σ = 122563884200800. Its totient is φ = 120062580441408.

The previous prime is 121313232321079. The next prime is 121313232321161. The reversal of 121313232321103 is 301123232313121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121313232321103 - 2²⁵ = 121313198766671 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 (121313232321163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 625325939703 + ... + 625325939896.

It is an arithmetic number, because the mean of its divisors is an integer number (30640971050200).

Almost surely, 2^{121313232321103} is an apocalyptic number.

121313232321103 is a deficient number, since it is larger than the sum of its proper divisors (1250651879697).

121313232321103 is an equidigital number, since it uses as much as digits as its factorization.

121313232321103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250651879696.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 121313232321103 its reverse (301123232313121), we get a palindrome (422436464634224).

The spelling of 121313232321103 in words is "one hundred twenty-one trillion, three hundred thirteen billion, two hundred thirty-two million, three hundred twenty-one thousand, one hundred three".