31112111048 has 8 divisors (see below), whose sum is σ = 58335208230. Its totient is φ = 15556055520.

The previous prime is 31112111047. The next prime is 31112111053. The reversal of 31112111048 is 84011121113.

It can be written as a sum of positive squares in only one way, i.e., 19667818564 + 11444292484 = 140242^2 + 106978^2 .

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

It is not an unprimeable number, because it can be changed into a prime (31112111047) 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 as a sum of consecutive naturals, namely, 1944506933 + ... + 1944506948.

Almost surely, 2^31112111048 is an apocalyptic number.

It is an amenable number.

31112111048 is a deficient number, since it is larger than the sum of its proper divisors (27223097182).

31112111048 is a wasteful number, since it uses less digits than its factorization.

31112111048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3889013887 (or 3889013883 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 23.

The spelling of 31112111048 in words is "thirty-one billion, one hundred twelve million, one hundred eleven thousand, forty-eight".