31031442024 has 64 divisors (see below), whose sum is σ = 84690498240. Its totient is φ = 9396879360.

The previous prime is 31031441983. The next prime is 31031442073. The reversal of 31031442024 is 42024413013.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 31031441985 and 31031442003.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 343144 + ... + 424040.

It is an arithmetic number, because the mean of its divisors is an integer number (1323289035).

Almost surely, 2^31031442024 is an apocalyptic number.

It is an amenable number.

31031442024 is an abundant number, since it is smaller than the sum of its proper divisors (53659056216).

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

31031442024 is a wasteful number, since it uses less digits than its factorization.

31031442024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82370 (or 82366 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 31031442024 its reverse (42024413013), we get a palindrome (73055855037).

The spelling of 31031442024 in words is "thirty-one billion, thirty-one million, four hundred forty-two thousand, twenty-four".