1213433093849 has 2 divisors, whose sum is σ = 1213433093850. Its totient is φ = 1213433093848.

The previous prime is 1213433093839. The next prime is 1213433093857. The reversal of 1213433093849 is 9483903343121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1127935333849 + 85497760000 = 1062043^2 + 292400^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213433093849 - 2¹² = 1213433089753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1213433093797 and 1213433093806.

It is not a weakly prime, because it can be changed into another prime (1213433093839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606716546924 + 606716546925.

It is an arithmetic number, because the mean of its divisors is an integer number (606716546925).

Almost surely, 2^{1213433093849} is an apocalyptic number.

It is an amenable number.

1213433093849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213433093849 is an equidigital number, since it uses as much as digits as its factorization.

1213433093849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1679616, while the sum is 50.

The spelling of 1213433093849 in words is "one trillion, two hundred thirteen billion, four hundred thirty-three million, ninety-three thousand, eight hundred forty-nine".