4000011831 has 12 divisors (see below), whose sum is σ = 5780043360. Its totient is φ = 2665636800.

The previous prime is 4000011797. The next prime is 4000011839. The reversal of 4000011831 is 1381100004.

It is a de Polignac number, because none of the positive numbers 2^k-4000011831 is a prime.

It is a super-2 number, since 2×4000011831² = 32000189296279945122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000011839) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61695 + ... + 108656.

It is an arithmetic number, because the mean of its divisors is an integer number (481670280).

Almost surely, 2^4000011831 is an apocalyptic number.

4000011831 is a deficient number, since it is larger than the sum of its proper divisors (1780031529).

4000011831 is a wasteful number, since it uses less digits than its factorization.

4000011831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172966 (or 172963 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 4000011831 is about 63245.6467355659. The cubic root of 4000011831 is about 1587.4026170118.

Adding to 4000011831 its reverse (1381100004), we get a palindrome (5381111835).

The spelling of 4000011831 in words is "four billion, eleven thousand, eight hundred thirty-one".