1213203112307 has 2 divisors, whose sum is σ = 1213203112308. Its totient is φ = 1213203112306.

The previous prime is 1213203112273. The next prime is 1213203112321. The reversal of 1213203112307 is 7032113023121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1213203112307 - 2²² = 1213198918003 is a prime.

It is a super-2 number, since 2×1213203112307² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1213203112327) 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, 606601556153 + 606601556154.

It is an arithmetic number, because the mean of its divisors is an integer number (606601556154).

Almost surely, 2^{1213203112307} is an apocalyptic number.

1213203112307 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213203112307 is an equidigital number, since it uses as much as digits as its factorization.

1213203112307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

Adding to 1213203112307 its reverse (7032113023121), we get a palindrome (8245316135428).

The spelling of 1213203112307 in words is "one trillion, two hundred thirteen billion, two hundred three million, one hundred twelve thousand, three hundred seven".