10245602313781 has 2 divisors, whose sum is σ = 10245602313782. Its totient is φ = 10245602313780.

The previous prime is 10245602313649. The next prime is 10245602313803. The reversal of 10245602313781 is 18731320654201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9876374728900 + 369227584881 = 3142670^2 + 607641^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10245602313781 is a prime.

It is a super-2 number, since 2×10245602313781² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10245602313281) 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, 5122801156890 + 5122801156891.

It is an arithmetic number, because the mean of its divisors is an integer number (5122801156891).

Almost surely, 2^{10245602313781} is an apocalyptic number.

It is an amenable number.

10245602313781 is a deficient number, since it is larger than the sum of its proper divisors (1).

10245602313781 is an equidigital number, since it uses as much as digits as its factorization.

10245602313781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

Adding to 10245602313781 its reverse (18731320654201), we get a palindrome (28976922967982).

The spelling of 10245602313781 in words is "ten trillion, two hundred forty-five billion, six hundred two million, three hundred thirteen thousand, seven hundred eighty-one".