121401307 has 2 divisors, whose sum is σ = 121401308. Its totient is φ = 121401306.

The previous prime is 121401299. The next prime is 121401331. The reversal of 121401307 is 703104121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121401307 - 2³ = 121401299 is a prime.

It is not a weakly prime, because it can be changed into another prime (124401307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60700653 + 60700654.

It is an arithmetic number, because the mean of its divisors is an integer number (60700654).

Almost surely, 2^121401307 is an apocalyptic number.

121401307 is a deficient number, since it is larger than the sum of its proper divisors (1).

121401307 is an equidigital number, since it uses as much as digits as its factorization.

121401307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 121401307 is about 11018.2261276487. The cubic root of 121401307 is about 495.1549452020.

Adding to 121401307 its reverse (703104121), we get a palindrome (824505428).

The spelling of 121401307 in words is "one hundred twenty-one million, four hundred one thousand, three hundred seven".