207231313 has 2 divisors, whose sum is σ = 207231314. Its totient is φ = 207231312.

The previous prime is 207231289. The next prime is 207231331. The reversal of 207231313 is 313132702.

It is a happy number.

Together with next prime (207231331) 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., 200845584 + 6385729 = 14172^2 + 2527^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-207231313 is a prime.

It is not a weakly prime, because it can be changed into another prime (207232313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103615656 + 103615657.

It is an arithmetic number, because the mean of its divisors is an integer number (103615657).

Almost surely, 2^207231313 is an apocalyptic number.

It is an amenable number.

207231313 is a deficient number, since it is larger than the sum of its proper divisors (1).

207231313 is an equidigital number, since it uses as much as digits as its factorization.

207231313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 207231313 is about 14395.5310079205. The cubic root of 207231313 is about 591.7684305906.

The spelling of 207231313 in words is "two hundred seven million, two hundred thirty-one thousand, three hundred thirteen".