121421444332103 has 2 divisors, whose sum is σ = 121421444332104. Its totient is φ = 121421444332102.

The previous prime is 121421444332057. The next prime is 121421444332157. The reversal of 121421444332103 is 301233444124121.

It is a weak prime.

It is an emirp because it is prime and its reverse (301233444124121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121421444332103 - 2²⁰ = 121421443283527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121421444332163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60710722166051 + 60710722166052.

It is an arithmetic number, because the mean of its divisors is an integer number (60710722166052).

Almost surely, 2^{121421444332103} is an apocalyptic number.

121421444332103 is a deficient number, since it is larger than the sum of its proper divisors (1).

121421444332103 is an equidigital number, since it uses as much as digits as its factorization.

121421444332103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 35.

Adding to 121421444332103 its reverse (301233444124121), we get a palindrome (422654888456224).

The spelling of 121421444332103 in words is "one hundred twenty-one trillion, four hundred twenty-one billion, four hundred forty-four million, three hundred thirty-two thousand, one hundred three".