100000111020001 has 4 divisors (see below), whose sum is σ = 100637054402452. Its totient is φ = 99363167637552.

The previous prime is 100000111019909. The next prime is 100000111020013. The reversal of 100000111020001 is 100020111000001.

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 64363330200976 + 35636780819025 = 8022676^2 + 5969655^2 .

It is a cyclic number.

It is not a de Polignac number, because 100000111020001 - 2⁹ = 100000111019489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100000111027001) 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, 318471690990 + ... + 318471691303.

It is an arithmetic number, because the mean of its divisors is an integer number (25159263600613).

Almost surely, 2^{100000111020001} is an apocalyptic number.

It is an amenable number.

100000111020001 is a deficient number, since it is larger than the sum of its proper divisors (636943382451).

100000111020001 is an equidigital number, since it uses as much as digits as its factorization.

100000111020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636943382450.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 100000111020001 its reverse (100020111000001), we get a palindrome (200020222020002).

The spelling of 100000111020001 in words is "one hundred trillion, one hundred eleven million, twenty thousand, one".