1224242143213 has 2 divisors, whose sum is σ = 1224242143214. Its totient is φ = 1224242143212.

The previous prime is 1224242143183. The next prime is 1224242143217. The reversal of 1224242143213 is 3123412424221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 927132117129 + 297110026084 = 962877^2 + 545078^2 .

It is a cyclic number.

It is not a de Polignac number, because 1224242143213 - 2⁵ = 1224242143181 is a prime.

It is a super-3 number, since 3×1224242143213³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1224242143217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612121071606 + 612121071607.

It is an arithmetic number, because the mean of its divisors is an integer number (612121071607).

Almost surely, 2^{1224242143213} is an apocalyptic number.

It is an amenable number.

1224242143213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224242143213 is an equidigital number, since it uses as much as digits as its factorization.

1224242143213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 31.

Adding to 1224242143213 its reverse (3123412424221), we get a palindrome (4347654567434).

The spelling of 1224242143213 in words is "one trillion, two hundred twenty-four billion, two hundred forty-two million, one hundred forty-three thousand, two hundred thirteen".