1000111023101 has 2 divisors, whose sum is σ = 1000111023102. Its totient is φ = 1000111023100.

The previous prime is 1000111023091. The next prime is 1000111023113. The reversal of 1000111023101 is 1013201110001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 901075562500 + 99035460601 = 949250^2 + 314699^2 .

It is an emirp because it is prime and its reverse (1013201110001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000111023101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000111043101) 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, 500055511550 + 500055511551.

It is an arithmetic number, because the mean of its divisors is an integer number (500055511551).

Almost surely, 2^{1000111023101} is an apocalyptic number.

It is an amenable number.

1000111023101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000111023101 is an equidigital number, since it uses as much as digits as its factorization.

1000111023101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 1000111023101 its reverse (1013201110001), we get a palindrome (2013312133102).

The spelling of 1000111023101 in words is "one trillion, one hundred eleven million, twenty-three thousand, one hundred one".