31132010112 has 128 divisors (see below), whose sum is σ = 99482150400. Its totient is φ = 8426695680.

The previous prime is 31132010027. The next prime is 31132010137. The reversal of 31132010112 is 21101023113.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×31132010112² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31132010091 and 31132010100.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253714 + ... + 355857.

It is an arithmetic number, because the mean of its divisors is an integer number (777204300).

Almost surely, 2^31132010112 is an apocalyptic number.

31132010112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31132010112 is an abundant number, since it is smaller than the sum of its proper divisors (68350140288).

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

31132010112 is a wasteful number, since it uses less digits than its factorization.

31132010112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609614 (or 609602 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 31132010112 its reverse (21101023113), we get a palindrome (52233033225).

The spelling of 31132010112 in words is "thirty-one billion, one hundred thirty-two million, ten thousand, one hundred twelve".