1000111100101 has 4 divisors (see below), whose sum is σ = 1024504053804. Its totient is φ = 975718146400.

The previous prime is 1000111100057. The next prime is 1000111100171. The reversal of 1000111100101 is 1010011110001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 605634150625 + 394476949476 = 778225^2 + 628074^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000111100101 - 2¹³ = 1000111091909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000111100171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12196476790 + ... + 12196476871.

It is an arithmetic number, because the mean of its divisors is an integer number (256126013451).

Almost surely, 2^{1000111100101} is an apocalyptic number.

It is an amenable number.

1000111100101 is a deficient number, since it is larger than the sum of its proper divisors (24392953703).

1000111100101 is an equidigital number, since it uses as much as digits as its factorization.

1000111100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24392953702.

The product of its (nonzero) digits is 1, while the sum is 7.

Adding to 1000111100101 its reverse (1010011110001), we get a palindrome (2010122210102).

The spelling of 1000111100101 in words is "one trillion, one hundred eleven million, one hundred thousand, one hundred one".