121355347 has 2 divisors, whose sum is σ = 121355348. Its totient is φ = 121355346.

The previous prime is 121355323. The next prime is 121355371. The reversal of 121355347 is 743553121.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (121355323) and next prime (121355371).

It is a cyclic number.

It is not a de Polignac number, because 121355347 - 2⁷ = 121355219 is a prime.

It is not a weakly prime, because it can be changed into another prime (121355317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60677673 + 60677674.

It is an arithmetic number, because the mean of its divisors is an integer number (60677674).

Almost surely, 2^121355347 is an apocalyptic number.

121355347 is a deficient number, since it is larger than the sum of its proper divisors (1).

121355347 is an equidigital number, since it uses as much as digits as its factorization.

121355347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 31.

The square root of 121355347 is about 11016.1402950398. The cubic root of 121355347 is about 495.0924522073.

The spelling of 121355347 in words is "one hundred twenty-one million, three hundred fifty-five thousand, three hundred forty-seven".