31110342040 has 32 divisors (see below), whose sum is σ = 74115816480. Its totient is φ = 11712128512.

The previous prime is 31110342013. The next prime is 31110342049. The reversal of 31110342040 is 4024301113.

It is a junction number, because it is equal to n+sod(n) for n = 31110341999 and 31110342017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31110342049) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 22874572 + ... + 22875931.

It is an arithmetic number, because the mean of its divisors is an integer number (2316119265).

Almost surely, 2^31110342040 is an apocalyptic number.

It is an amenable number.

31110342040 is an abundant number, since it is smaller than the sum of its proper divisors (43005474440).

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

31110342040 is a wasteful number, since it uses less digits than its factorization.

31110342040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45750531 (or 45750527 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 31110342040 its reverse (4024301113), we get a palindrome (35134643153).

The spelling of 31110342040 in words is "thirty-one billion, one hundred ten million, three hundred forty-two thousand, forty".