3872115111 has 4 divisors (see below), whose sum is σ = 5162820152. Its totient is φ = 2581410072.

The previous prime is 3872115053. The next prime is 3872115131. The reversal of 3872115111 is 1115112783.

3872115111 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1115112783 = 3 ⋅371704261.

It is not a de Polignac number, because 3872115111 - 2²² = 3867920807 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 (3872115131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645352516 + ... + 645352521.

It is an arithmetic number, because the mean of its divisors is an integer number (1290705038).

Almost surely, 2^3872115111 is an apocalyptic number.

3872115111 is a deficient number, since it is larger than the sum of its proper divisors (1290705041).

3872115111 is a wasteful number, since it uses less digits than its factorization.

3872115111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290705040.

The product of its digits is 1680, while the sum is 30.

The square root of 3872115111 is about 62226.3216894587. The cubic root of 3872115111 is about 1570.3004429957.

Adding to 3872115111 its reverse (1115112783), we get a palindrome (4987227894).

The spelling of 3872115111 in words is "three billion, eight hundred seventy-two million, one hundred fifteen thousand, one hundred eleven".