31441303221 has 8 divisors (see below), whose sum is σ = 42042550944. Its totient is φ = 20900462160.

The previous prime is 31441303217. The next prime is 31441303241. The reversal of 31441303221 is 12230314413.

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 31441303221 - 2² = 31441303217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31441303191 and 31441303200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31441303241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15100450 + ... + 15102531.

It is an arithmetic number, because the mean of its divisors is an integer number (5255318868).

Almost surely, 2^31441303221 is an apocalyptic number.

It is an amenable number.

31441303221 is a deficient number, since it is larger than the sum of its proper divisors (10601247723).

31441303221 is a wasteful number, since it uses less digits than its factorization.

31441303221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30203331.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31441303221 its reverse (12230314413), we get a palindrome (43671617634).

The spelling of 31441303221 in words is "thirty-one billion, four hundred forty-one million, three hundred three thousand, two hundred twenty-one".