31110043005 has 80 divisors (see below), whose sum is σ = 57322782000. Its totient is φ = 16135511040.

The previous prime is 31110042991. The next prime is 31110043037. The reversal of 31110043005 is 50034001113.

It can be written as a sum of positive squares in 8 ways, for example, as 2255585049 + 28854457956 = 47493^2 + 169866^2 .

It is not a de Polignac number, because 31110043005 - 2⁵ = 31110042973 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2191671 + ... + 2205819.

It is an arithmetic number, because the mean of its divisors is an integer number (716534775).

Almost surely, 2^31110043005 is an apocalyptic number.

It is an amenable number.

31110043005 is a deficient number, since it is larger than the sum of its proper divisors (26212738995).

31110043005 is a wasteful number, since it uses less digits than its factorization.

31110043005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14316 (or 14307 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

Adding to 31110043005 its reverse (50034001113), we get a palindrome (81144044118).

The spelling of 31110043005 in words is "thirty-one billion, one hundred ten million, forty-three thousand, five".