121295971 has 2 divisors, whose sum is σ = 121295972. Its totient is φ = 121295970.

The previous prime is 121295947. The next prime is 121296013. The reversal of 121295971 is 179592121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121295971 - 2⁵ = 121295939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121295971.

It is not a weakly prime, because it can be changed into another prime (121295071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60647985 + 60647986.

It is an arithmetic number, because the mean of its divisors is an integer number (60647986).

Almost surely, 2^121295971 is an apocalyptic number.

121295971 is a deficient number, since it is larger than the sum of its proper divisors (1).

121295971 is an equidigital number, since it uses as much as digits as its factorization.

121295971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 37.

The square root of 121295971 is about 11013.4450105314. The cubic root of 121295971 is about 495.0116937686.

The spelling of 121295971 in words is "one hundred twenty-one million, two hundred ninety-five thousand, nine hundred seventy-one".