121202101973 has 2 divisors, whose sum is σ = 121202101974. Its totient is φ = 121202101972.

The previous prime is 121202101963. The next prime is 121202102029. The reversal of 121202101973 is 379101202121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73171873009 + 48030228964 = 270503^2 + 219158^2 .

It is a cyclic number.

It is not a de Polignac number, because 121202101973 - 2⁴ = 121202101957 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121202101963) 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, 60601050986 + 60601050987.

It is an arithmetic number, because the mean of its divisors is an integer number (60601050987).

Almost surely, 2^121202101973 is an apocalyptic number.

It is an amenable number.

121202101973 is a deficient number, since it is larger than the sum of its proper divisors (1).

121202101973 is an equidigital number, since it uses as much as digits as its factorization.

121202101973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 29.

The spelling of 121202101973 in words is "one hundred twenty-one billion, two hundred two million, one hundred one thousand, nine hundred seventy-three".