440231131331 has 8 divisors (see below), whose sum is σ = 455420242800. Its totient is φ = 425042601760.

The previous prime is 440231131321. The next prime is 440231131337. The reversal of 440231131331 is 133131132044.

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

It is not a de Polignac number, because 440231131331 - 2⁶ = 440231131267 is a prime.

It is a super-2 number, since 2×440231131331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 440231131331.

It is not an unprimeable number, because it can be changed into a prime (440231131337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1864700 + ... + 2087478.

It is an arithmetic number, because the mean of its divisors is an integer number (56927530350).

Almost surely, 2^440231131331 is an apocalyptic number.

440231131331 is a deficient number, since it is larger than the sum of its proper divisors (15189111469).

440231131331 is a wasteful number, since it uses less digits than its factorization.

440231131331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290949.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 440231131331 its reverse (133131132044), we get a palindrome (573362263375).

The spelling of 440231131331 in words is "four hundred forty billion, two hundred thirty-one million, one hundred thirty-one thousand, three hundred thirty-one".