1207308313 has 2 divisors, whose sum is σ = 1207308314. Its totient is φ = 1207308312.

The previous prime is 1207308283. The next prime is 1207308331. The reversal of 1207308313 is 3138037021.

Together with next prime (1207308331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1176970249 + 30338064 = 34307^2 + 5508^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1207308313 is a prime.

It is not a weakly prime, because it can be changed into another prime (1207308413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 603654156 + 603654157.

It is an arithmetic number, because the mean of its divisors is an integer number (603654157).

Almost surely, 2^1207308313 is an apocalyptic number.

It is an amenable number.

1207308313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1207308313 is an equidigital number, since it uses as much as digits as its factorization.

1207308313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 1207308313 is about 34746.3424406080. The cubic root of 1207308313 is about 1064.8114937435.

The spelling of 1207308313 in words is "one billion, two hundred seven million, three hundred eight thousand, three hundred thirteen".