1202312003317 has 2 divisors, whose sum is σ = 1202312003318. Its totient is φ = 1202312003316.

The previous prime is 1202312003257. The next prime is 1202312003401. The reversal of 1202312003317 is 7133002132021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 813876426801 + 388435576516 = 902151^2 + 623246^2 .

It is an emirp because it is prime and its reverse (7133002132021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1202312003317 - 2¹¹ = 1202312001269 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1202312003291 and 1202312003300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202312003017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601156001658 + 601156001659.

It is an arithmetic number, because the mean of its divisors is an integer number (601156001659).

Almost surely, 2^{1202312003317} is an apocalyptic number.

It is an amenable number.

1202312003317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202312003317 is an equidigital number, since it uses as much as digits as its factorization.

1202312003317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

Adding to 1202312003317 its reverse (7133002132021), we get a palindrome (8335314135338).

The spelling of 1202312003317 in words is "one trillion, two hundred two billion, three hundred twelve million, three thousand, three hundred seventeen".