100812113740813 has 2 divisors, whose sum is σ = 100812113740814. Its totient is φ = 100812113740812.

The previous prime is 100812113740757. The next prime is 100812113740823. The reversal of 100812113740813 is 318047311218001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80749579849929 + 20062533890884 = 8986077^2 + 4479122^2 .

It is an emirp because it is prime and its reverse (318047311218001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100812113740813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100812113740823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50406056870406 + 50406056870407.

It is an arithmetic number, because the mean of its divisors is an integer number (50406056870407).

Almost surely, 2^{100812113740813} is an apocalyptic number.

It is an amenable number.

100812113740813 is a deficient number, since it is larger than the sum of its proper divisors (1).

100812113740813 is an equidigital number, since it uses as much as digits as its factorization.

100812113740813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 40.

Adding to 100812113740813 its reverse (318047311218001), we get a palindrome (418859424958814).

The spelling of 100812113740813 in words is "one hundred trillion, eight hundred twelve billion, one hundred thirteen million, seven hundred forty thousand, eight hundred thirteen".