31130010132 has 96 divisors (see below), whose sum is σ = 80453020032. Its totient is φ = 9307823616.

The previous prime is 31130010101. The next prime is 31130010143. The reversal of 31130010132 is 23101003113.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1309698 + ... + 1333254.

It is an arithmetic number, because the mean of its divisors is an integer number (838052292).

Almost surely, 2^31130010132 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 31130010132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40226510016).

31130010132 is an abundant number, since it is smaller than the sum of its proper divisors (49323009900).

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

31130010132 is a wasteful number, since it uses less digits than its factorization.

31130010132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23817 (or 23815 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 31130010132 its reverse (23101003113), we get a palindrome (54231013245).

The spelling of 31130010132 in words is "thirty-one billion, one hundred thirty million, ten thousand, one hundred thirty-two".