347073730121 has 2 divisors, whose sum is σ = 347073730122. Its totient is φ = 347073730120.

The previous prime is 347073730079. The next prime is 347073730127. The reversal of 347073730121 is 121037370743.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 344761562896 + 2312167225 = 587164^2 + 48085^2 .

It is a cyclic number.

It is not a de Polignac number, because 347073730121 - 2¹⁸ = 347073467977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (347073730127) 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, 173536865060 + 173536865061.

It is an arithmetic number, because the mean of its divisors is an integer number (173536865061).

Almost surely, 2^347073730121 is an apocalyptic number.

It is an amenable number.

347073730121 is a deficient number, since it is larger than the sum of its proper divisors (1).

347073730121 is an equidigital number, since it uses as much as digits as its factorization.

347073730121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 74088, while the sum is 38.

The spelling of 347073730121 in words is "three hundred forty-seven billion, seventy-three million, seven hundred thirty thousand, one hundred twenty-one".