10010000111081 has 2 divisors, whose sum is σ = 10010000111082. Its totient is φ = 10010000111080.

The previous prime is 10010000110987. The next prime is 10010000111101. The reversal of 10010000111081 is 18011100001001.

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., 10006523829481 + 3476281600 = 3163309^2 + 58960^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10010000111081 is a prime.

It is a super-3 number, since 3×10010000111081³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (10010000117081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005000055540 + 5005000055541.

It is an arithmetic number, because the mean of its divisors is an integer number (5005000055541).

Almost surely, 2^{10010000111081} is an apocalyptic number.

It is an amenable number.

10010000111081 is a deficient number, since it is larger than the sum of its proper divisors (1).

10010000111081 is an equidigital number, since it uses as much as digits as its factorization.

10010000111081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 10010000111081 its reverse (18011100001001), we get a palindrome (28021100112082).

The spelling of 10010000111081 in words is "ten trillion, ten billion, one hundred eleven thousand, eighty-one".