4011144431 has 16 divisors (see below), whose sum is σ = 4700602368. Its totient is φ = 3350961600.

The previous prime is 4011144427. The next prime is 4011144457. The reversal of 4011144431 is 1344411104.

It is not a de Polignac number, because 4011144431 - 2² = 4011144427 is a prime.

It is a super-2 number, since 2×4011144431² = 32178559292684627522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4011144397 and 4011144406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4011144421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310226 + ... + 322896.

It is an arithmetic number, because the mean of its divisors is an integer number (293787648).

Almost surely, 2^4011144431 is an apocalyptic number.

4011144431 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

4011144431 is a deficient number, since it is larger than the sum of its proper divisors (689457937).

4011144431 is a wasteful number, since it uses less digits than its factorization.

4011144431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13822.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 4011144431 is about 63333.5963845414. The cubic root of 4011144431 is about 1588.8739084261.

Adding to 4011144431 its reverse (1344411104), we get a palindrome (5355555535).

The spelling of 4011144431 in words is "four billion, eleven million, one hundred forty-four thousand, four hundred thirty-one".