31240011112 has 8 divisors (see below), whose sum is σ = 58575020850. Its totient is φ = 15620005552.

The previous prime is 31240011091. The next prime is 31240011181. The reversal of 31240011112 is 21111004213.

It can be written as a sum of positive squares in only one way, i.e., 30148765956 + 1091245156 = 173634^2 + 33034^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 1952500687 + ... + 1952500702.

Almost surely, 2^31240011112 is an apocalyptic number.

It is an amenable number.

31240011112 is a deficient number, since it is larger than the sum of its proper divisors (27335009738).

31240011112 is a wasteful number, since it uses less digits than its factorization.

31240011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3905001395 (or 3905001391 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 31240011112 its reverse (21111004213), we get a palindrome (52351015325).

The spelling of 31240011112 in words is "thirty-one billion, two hundred forty million, eleven thousand, one hundred twelve".