1200612317 has 2 divisors, whose sum is σ = 1200612318. Its totient is φ = 1200612316.

The previous prime is 1200612313. The next prime is 1200612353. The reversal of 1200612317 is 7132160021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 872966116 + 327646201 = 29546^2 + 18101^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200612317 - 2² = 1200612313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200612292 and 1200612301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200612311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600306158 + 600306159.

It is an arithmetic number, because the mean of its divisors is an integer number (600306159).

Almost surely, 2^1200612317 is an apocalyptic number.

It is an amenable number.

1200612317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200612317 is an equidigital number, since it uses as much as digits as its factorization.

1200612317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1200612317 is about 34649.8530588515. The cubic root of 1200612317 is about 1062.8392839784.

Adding to 1200612317 its reverse (7132160021), we get a palindrome (8332772338).

The spelling of 1200612317 in words is "one billion, two hundred million, six hundred twelve thousand, three hundred seventeen".