121442645603 has 2 divisors, whose sum is σ = 121442645604. Its totient is φ = 121442645602.

The previous prime is 121442645593. The next prime is 121442645617. The reversal of 121442645603 is 306546244121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121442645603 - 2⁶ = 121442645539 is a prime.

It is not a weakly prime, because it can be changed into another prime (121442645003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60721322801 + 60721322802.

It is an arithmetic number, because the mean of its divisors is an integer number (60721322802).

Almost surely, 2^121442645603 is an apocalyptic number.

121442645603 is a deficient number, since it is larger than the sum of its proper divisors (1).

121442645603 is an equidigital number, since it uses as much as digits as its factorization.

121442645603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 38.

Adding to 121442645603 its reverse (306546244121), we get a palindrome (427988889724).

The spelling of 121442645603 in words is "one hundred twenty-one billion, four hundred forty-two million, six hundred forty-five thousand, six hundred three".