31831145060 has 96 divisors (see below), whose sum is σ = 78579849600. Its totient is φ = 10678026240.

The previous prime is 31831145033. The next prime is 31831145081. The reversal of 31831145060 is 6054113813.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 7688471 + ... + 7692609.

It is an arithmetic number, because the mean of its divisors is an integer number (818540100).

Almost surely, 2^31831145060 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31831145060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39289924800).

31831145060 is an abundant number, since it is smaller than the sum of its proper divisors (46748704540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31831145060 is a wasteful number, since it uses less digits than its factorization.

31831145060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6861 (or 6859 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

Adding to 31831145060 its reverse (6054113813), we get a palindrome (37885258873).

The spelling of 31831145060 in words is "thirty-one billion, eight hundred thirty-one million, one hundred forty-five thousand, sixty".