1312240421033 has 2 divisors, whose sum is σ = 1312240421034. Its totient is φ = 1312240421032.

The previous prime is 1312240420993. The next prime is 1312240421059. The reversal of 1312240421033 is 3301240422131.

It is an a-pointer prime, because the next prime (1312240421059) can be obtained adding 1312240421033 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1091329140889 + 220911280144 = 1044667^2 + 470012^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312240421033 - 2⁶ = 1312240420969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1312240420993 and 1312240421011.

It is not a weakly prime, because it can be changed into another prime (1312240451033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656120210516 + 656120210517.

It is an arithmetic number, because the mean of its divisors is an integer number (656120210517).

Almost surely, 2^{1312240421033} is an apocalyptic number.

It is an amenable number.

1312240421033 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312240421033 is an equidigital number, since it uses as much as digits as its factorization.

1312240421033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1312240421033 its reverse (3301240422131), we get a palindrome (4613480843164).

The spelling of 1312240421033 in words is "one trillion, three hundred twelve billion, two hundred forty million, four hundred twenty-one thousand, thirty-three".