121110009973 has 2 divisors, whose sum is σ = 121110009974. Its totient is φ = 121110009972.

The previous prime is 121110009941. The next prime is 121110010031. The reversal of 121110009973 is 379900011121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98108647729 + 23001362244 = 313223^2 + 151662^2 .

It is a cyclic number.

It is not a de Polignac number, because 121110009973 - 2⁵ = 121110009941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121110009473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60555004986 + 60555004987.

It is an arithmetic number, because the mean of its divisors is an integer number (60555004987).

Almost surely, 2^121110009973 is an apocalyptic number.

It is an amenable number.

121110009973 is a deficient number, since it is larger than the sum of its proper divisors (1).

121110009973 is an equidigital number, since it uses as much as digits as its factorization.

121110009973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 34.

The spelling of 121110009973 in words is "one hundred twenty-one billion, one hundred ten million, nine thousand, nine hundred seventy-three".