4400131322431 has 16 divisors (see below), whose sum is σ = 4992635321856. Its totient is φ = 3847346670816.

The previous prime is 4400131322429. The next prime is 4400131322557. The reversal of 4400131322431 is 1342231310044.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 4400131322431 - 2¹ = 4400131322429 is a prime.

It is a super-2 number, since 2×4400131322431² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4400131322431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4400131322231) 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 15 ways as a sum of consecutive naturals, for example, 71406865 + ... + 71468458.

It is an arithmetic number, because the mean of its divisors is an integer number (312039707616).

Almost surely, 2^{4400131322431} is an apocalyptic number.

4400131322431 is a deficient number, since it is larger than the sum of its proper divisors (592503999425).

4400131322431 is a wasteful number, since it uses less digits than its factorization.

4400131322431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142875462.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 4400131322431 its reverse (1342231310044), we get a palindrome (5742362632475).

The spelling of 4400131322431 in words is "four trillion, four hundred billion, one hundred thirty-one million, three hundred twenty-two thousand, four hundred thirty-one".