307234121 has 2 divisors, whose sum is σ = 307234122. Its totient is φ = 307234120.

The previous prime is 307234117. The next prime is 307234133. The reversal of 307234121 is 121432703.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 280194121 + 27040000 = 16739^2 + 5200^2 .

It is a cyclic number.

It is not a de Polignac number, because 307234121 - 2² = 307234117 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 (307234171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153617060 + 153617061.

It is an arithmetic number, because the mean of its divisors is an integer number (153617061).

Almost surely, 2^307234121 is an apocalyptic number.

It is an amenable number.

307234121 is a deficient number, since it is larger than the sum of its proper divisors (1).

307234121 is an equidigital number, since it uses as much as digits as its factorization.

307234121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 307234121 is about 17528.0951902938. The cubic root of 307234121 is about 674.7711128842.

Adding to 307234121 its reverse (121432703), we get a palindrome (428666824).

The spelling of 307234121 in words is "three hundred seven million, two hundred thirty-four thousand, one hundred twenty-one".