101111009485813 has 2 divisors, whose sum is σ = 101111009485814. Its totient is φ = 101111009485812.

The previous prime is 101111009485789. The next prime is 101111009485847. The reversal of 101111009485813 is 318584900111101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61168697965764 + 39942311520049 = 7821042^2 + 6319993^2 .

It is a cyclic number.

It is not a de Polignac number, because 101111009485813 - 2⁴⁵ = 65926637396981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101111009485813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101111009485313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50555504742906 + 50555504742907.

It is an arithmetic number, because the mean of its divisors is an integer number (50555504742907).

Almost surely, 2^{101111009485813} is an apocalyptic number.

It is an amenable number.

101111009485813 is a deficient number, since it is larger than the sum of its proper divisors (1).

101111009485813 is an equidigital number, since it uses as much as digits as its factorization.

101111009485813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 43.

Adding to 101111009485813 its reverse (318584900111101), we get a palindrome (419695909596914).

The spelling of 101111009485813 in words is "one hundred one trillion, one hundred eleven billion, nine million, four hundred eighty-five thousand, eight hundred thirteen".