31241022231 has 8 divisors (see below), whose sum is σ = 41721992320. Its totient is φ = 20793700152.

The previous prime is 31241022229. The next prime is 31241022259. The reversal of 31241022231 is 13222014213.

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

It is not a de Polignac number, because 31241022231 - 2¹ = 31241022229 is a prime.

It is a super-2 number, since 2×31241022231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31241022198 and 31241022207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31241022221) 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, 8409835 + ... + 8413548.

It is an arithmetic number, because the mean of its divisors is an integer number (5215249040).

Almost surely, 2^31241022231 is an apocalyptic number.

31241022231 is a deficient number, since it is larger than the sum of its proper divisors (10480970089).

31241022231 is a wasteful number, since it uses less digits than its factorization.

31241022231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16824005.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31241022231 its reverse (13222014213), we get a palindrome (44463036444).

The spelling of 31241022231 in words is "thirty-one billion, two hundred forty-one million, twenty-two thousand, two hundred thirty-one".