31444442021443 has 8 divisors (see below), whose sum is σ = 34303946062320. Its totient is φ = 28585091047680.

The previous prime is 31444442021441. The next prime is 31444442021519. The reversal of 31444442021443 is 34412024444413.

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

It is a cyclic number.

It is not a de Polignac number, because 31444442021443 - 2¹ = 31444442021441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31444442021396 and 31444442021405.

It is not an unprimeable number, because it can be changed into a prime (31444442021441) 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, 37837030 + ... + 38659147.

It is an arithmetic number, because the mean of its divisors is an integer number (4287993257790).

Almost surely, 2^{31444442021443} is an apocalyptic number.

31444442021443 is a deficient number, since it is larger than the sum of its proper divisors (2859504040877).

31444442021443 is a wasteful number, since it uses less digits than its factorization.

31444442021443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76533557.

The product of its (nonzero) digits is 589824, while the sum is 40.

Adding to 31444442021443 its reverse (34412024444413), we get a palindrome (65856466465856).

The spelling of 31444442021443 in words is "thirty-one trillion, four hundred forty-four billion, four hundred forty-two million, twenty-one thousand, four hundred forty-three".