31122004884 has 24 divisors (see below), whose sum is σ = 73105384800. Its totient is φ = 10304376864.

The previous prime is 31122004853. The next prime is 31122004909. The reversal of 31122004884 is 48840022113.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 8701234 + ... + 8704809.

It is an arithmetic number, because the mean of its divisors is an integer number (3046057700).

Almost surely, 2^31122004884 is an apocalyptic number.

It is an amenable number.

31122004884 is an abundant number, since it is smaller than the sum of its proper divisors (41983379916).

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

31122004884 is a wasteful number, since it uses less digits than its factorization.

31122004884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17406199 (or 17406197 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

Adding to 31122004884 its reverse (48840022113), we get a palindrome (79962026997).

The spelling of 31122004884 in words is "thirty-one billion, one hundred twenty-two million, four thousand, eight hundred eighty-four".