4001111131 has 8 divisors (see below), whose sum is σ = 4130908544. Its totient is φ = 3871359360.

The previous prime is 4001111113. The next prime is 4001111141. The reversal of 4001111131 is 1311111004.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4001111131 - 2¹³ = 4001102939 is a prime.

It is a super-2 number, since 2×4001111131² = 32017780565224198322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4001111141) 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 7 ways as a sum of consecutive naturals, for example, 319765 + ... + 332041.

It is an arithmetic number, because the mean of its divisors is an integer number (516363568).

Almost surely, 2^4001111131 is an apocalyptic number.

4001111131 is a deficient number, since it is larger than the sum of its proper divisors (129797413).

4001111131 is a wasteful number, since it uses less digits than its factorization.

4001111131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22821.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 4001111131 is about 63254.3368552702. The cubic root of 4001111131 is about 1587.5480225703.

Adding to 4001111131 its reverse (1311111004), we get a palindrome (5312222135).

The spelling of 4001111131 in words is "four billion, one million, one hundred eleven thousand, one hundred thirty-one".