31112140328 has 16 divisors (see below), whose sum is σ = 58465192500. Its totient is φ = 15521422336.

The previous prime is 31112140327. The next prime is 31112140333. The reversal of 31112140328 is 82304121113.

It can be written as a sum of positive squares in 2 ways, for example, as 30926036164 + 186104164 = 175858^2 + 13642^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31112140297 and 31112140306.

It is not an unprimeable number, because it can be changed into a prime (31112140327) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4327163 + ... + 4334346.

Almost surely, 2^31112140328 is an apocalyptic number.

It is an amenable number.

31112140328 is a deficient number, since it is larger than the sum of its proper divisors (27353052172).

31112140328 is a wasteful number, since it uses less digits than its factorization.

31112140328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8661964 (or 8661960 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 31112140328 in words is "thirty-one billion, one hundred twelve million, one hundred forty thousand, three hundred twenty-eight".