1001123245313 has 2 divisors, whose sum is σ = 1001123245314. Its totient is φ = 1001123245312.

The previous prime is 1001123245279. The next prime is 1001123245319. The reversal of 1001123245313 is 3135423211001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 913999097089 + 87124148224 = 956033^2 + 295168^2 .

It is an emirp because it is prime and its reverse (3135423211001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1001123245313 - 2²⁶ = 1001056136449 is a prime.

It is not a weakly prime, because it can be changed into another prime (1001123245319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500561622656 + 500561622657.

It is an arithmetic number, because the mean of its divisors is an integer number (500561622657).

Almost surely, 2^{1001123245313} is an apocalyptic number.

It is an amenable number.

1001123245313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001123245313 is an equidigital number, since it uses as much as digits as its factorization.

1001123245313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 1001123245313 its reverse (3135423211001), we get a palindrome (4136546456314).

The spelling of 1001123245313 in words is "one trillion, one billion, one hundred twenty-three million, two hundred forty-five thousand, three hundred thirteen".