121377001 has 2 divisors, whose sum is σ = 121377002. Its totient is φ = 121377000.

The previous prime is 121376993. The next prime is 121377037. The reversal of 121377001 is 100773121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103938025 + 17438976 = 10195^2 + 4176^2 .

It is a cyclic number.

It is not a de Polignac number, because 121377001 - 2³ = 121376993 is a prime.

It is not a weakly prime, because it can be changed into another prime (121377041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60688500 + 60688501.

It is an arithmetic number, because the mean of its divisors is an integer number (60688501).

Almost surely, 2^121377001 is an apocalyptic number.

It is an amenable number.

121377001 is a deficient number, since it is larger than the sum of its proper divisors (1).

121377001 is an equidigital number, since it uses as much as digits as its factorization.

121377001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 294, while the sum is 22.

The square root of 121377001 is about 11017.1230818213. The cubic root of 121377001 is about 495.1218976737.

The spelling of 121377001 in words is "one hundred twenty-one million, three hundred seventy-seven thousand, one".