1213201307 has 2 divisors, whose sum is σ = 1213201308. Its totient is φ = 1213201306.

The previous prime is 1213201303. The next prime is 1213201333. The reversal of 1213201307 is 7031023121.

It is a weak prime.

It is an emirp because it is prime and its reverse (7031023121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1213201307 - 2² = 1213201303 is a prime.

It is a super-2 number, since 2×1213201307² = 2943714822613016498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1213201303) 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, 606600653 + 606600654.

It is an arithmetic number, because the mean of its divisors is an integer number (606600654).

Almost surely, 2^1213201307 is an apocalyptic number.

1213201307 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213201307 is an equidigital number, since it uses as much as digits as its factorization.

1213201307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 1213201307 is about 34831.0394188861. The cubic root of 1213201307 is about 1066.5411667560.

Adding to 1213201307 its reverse (7031023121), we get a palindrome (8244224428).

The spelling of 1213201307 in words is "one billion, two hundred thirteen million, two hundred one thousand, three hundred seven".