121301951 has 2 divisors, whose sum is σ = 121301952. Its totient is φ = 121301950.

The previous prime is 121301923. The next prime is 121301969. The reversal of 121301951 is 159103121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121301951 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121301911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60650975 + 60650976.

It is an arithmetic number, because the mean of its divisors is an integer number (60650976).

Almost surely, 2^121301951 is an apocalyptic number.

121301951 is a deficient number, since it is larger than the sum of its proper divisors (1).

121301951 is an equidigital number, since it uses as much as digits as its factorization.

121301951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 23.

The square root of 121301951 is about 11013.7164935366. The cubic root of 121301951 is about 495.0198284748.

The spelling of 121301951 in words is "one hundred twenty-one million, three hundred one thousand, nine hundred fifty-one".