121321023321103 has 2 divisors, whose sum is σ = 121321023321104. Its totient is φ = 121321023321102.

The previous prime is 121321023321083. The next prime is 121321023321131. The reversal of 121321023321103 is 301123320123121.

It is a weak prime.

It is an emirp because it is prime and its reverse (301123320123121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121321023321103 - 2³³ = 121312433386511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121321023321133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60660511660551 + 60660511660552.

It is an arithmetic number, because the mean of its divisors is an integer number (60660511660552).

Almost surely, 2^{121321023321103} is an apocalyptic number.

121321023321103 is a deficient number, since it is larger than the sum of its proper divisors (1).

121321023321103 is an equidigital number, since it uses as much as digits as its factorization.

121321023321103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 121321023321103 its reverse (301123320123121), we get a palindrome (422444343444224).

The spelling of 121321023321103 in words is "one hundred twenty-one trillion, three hundred twenty-one billion, twenty-three million, three hundred twenty-one thousand, one hundred three".