121232347 has 2 divisors, whose sum is σ = 121232348. Its totient is φ = 121232346.

The previous prime is 121232311. The next prime is 121232357. The reversal of 121232347 is 743232121.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (743232121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121232347 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (121232357) 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, 60616173 + 60616174.

It is an arithmetic number, because the mean of its divisors is an integer number (60616174).

Almost surely, 2^121232347 is an apocalyptic number.

121232347 is a deficient number, since it is larger than the sum of its proper divisors (1).

121232347 is an equidigital number, since it uses as much as digits as its factorization.

121232347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 25.

The square root of 121232347 is about 11010.5561621564. The cubic root of 121232347 is about 494.9251282874.

Adding to 121232347 its reverse (743232121), we get a palindrome (864464468).

The spelling of 121232347 in words is "one hundred twenty-one million, two hundred thirty-two thousand, three hundred forty-seven".