100001911 has 4 divisors (see below), whose sum is σ = 102441024. Its totient is φ = 97562800.

The previous prime is 100001903. The next prime is 100001927. The reversal of 100001911 is 119100001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 119100001 = 2381 ⋅50021.

It is a cyclic number.

It is not a de Polignac number, because 100001911 - 2³ = 100001903 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100001891 and 100001900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100001611) 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, 1219495 + ... + 1219576.

It is an arithmetic number, because the mean of its divisors is an integer number (25610256).

Almost surely, 2^100001911 is an apocalyptic number.

100001911 is a deficient number, since it is larger than the sum of its proper divisors (2439113).

100001911 is an equidigital number, since it uses as much as digits as its factorization.

100001911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439112.

The product of its (nonzero) digits is 9, while the sum is 13.

The square root of 100001911 is about 10000.0955495435. The cubic root of 100001911 is about 464.1618400345.

Adding to 100001911 its reverse (119100001), we get a palindrome (219101912).

It can be divided in two parts, 10000 and 1911, that added together give a palindrome (11911).

The spelling of 100001911 in words is "one hundred million, one thousand, nine hundred eleven".