121325251 has 2 divisors, whose sum is σ = 121325252. Its totient is φ = 121325250.

The previous prime is 121325249. The next prime is 121325261. The reversal of 121325251 is 152523121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121325251 - 2¹ = 121325249 is a prime.

Together with 121325249, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (121325261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60662625 + 60662626.

It is an arithmetic number, because the mean of its divisors is an integer number (60662626).

Almost surely, 2^121325251 is an apocalyptic number.

121325251 is a deficient number, since it is larger than the sum of its proper divisors (1).

121325251 is an equidigital number, since it uses as much as digits as its factorization.

121325251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 600, while the sum is 22.

The square root of 121325251 is about 11014.7742146628. The cubic root of 121325251 is about 495.0515213523.

Adding to 121325251 its reverse (152523121), we get a palindrome (273848372).

The spelling of 121325251 in words is "one hundred twenty-one million, three hundred twenty-five thousand, two hundred fifty-one".