121303901 has 2 divisors, whose sum is σ = 121303902. Its totient is φ = 121303900.

The previous prime is 121303873. The next prime is 121303927. The reversal of 121303901 is 109303121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114276100 + 7027801 = 10690^2 + 2651^2 .

It is a cyclic number.

It is not a de Polignac number, because 121303901 - 2¹⁸ = 121041757 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 (121303001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60651950 + 60651951.

It is an arithmetic number, because the mean of its divisors is an integer number (60651951).

Almost surely, 2^121303901 is an apocalyptic number.

It is an amenable number.

121303901 is a deficient number, since it is larger than the sum of its proper divisors (1).

121303901 is an equidigital number, since it uses as much as digits as its factorization.

121303901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 121303901 is about 11013.8050191566. The cubic root of 121303901 is about 495.0224810386.

The spelling of 121303901 in words is "one hundred twenty-one million, three hundred three thousand, nine hundred one".