100520660111 has 4 divisors (see below), whose sum is σ = 103986889800. Its totient is φ = 97054430424.

The previous prime is 100520660087. The next prime is 100520660131. The reversal of 100520660111 is 111066025001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111066025001 = 113 ⋅982885177.

It is a cyclic number.

It is not a de Polignac number, because 100520660111 - 2³⁰ = 99446918287 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 (100520660131) 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, 1733114801 + ... + 1733114858.

It is an arithmetic number, because the mean of its divisors is an integer number (25996722450).

Almost surely, 2^100520660111 is an apocalyptic number.

100520660111 is a deficient number, since it is larger than the sum of its proper divisors (3466229689).

100520660111 is an equidigital number, since it uses as much as digits as its factorization.

100520660111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3466229688.

The product of its (nonzero) digits is 360, while the sum is 23.

Adding to 100520660111 its reverse (111066025001), we get a palindrome (211586685112).

The spelling of 100520660111 in words is "one hundred billion, five hundred twenty million, six hundred sixty thousand, one hundred eleven".