20312124 has 24 divisors (see below), whose sum is σ = 54165888. Its totient is φ = 5803440.

The previous prime is 20312113. The next prime is 20312137. The reversal of 20312124 is 42121302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120822 + ... + 120989.

It is an arithmetic number, because the mean of its divisors is an integer number (2256912).

Almost surely, 2^20312124 is an apocalyptic number.

It is an amenable number.

20312124 is an abundant number, since it is smaller than the sum of its proper divisors (33853764).

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

20312124 is a wasteful number, since it uses less digits than its factorization.

20312124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241825 (or 241823 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 20312124 is about 4506.8973806822. The cubic root of 20312124 is about 272.8465372114.

Adding to 20312124 its reverse (42121302), we get a palindrome (62433426).

The spelling of 20312124 in words is "twenty million, three hundred twelve thousand, one hundred twenty-four".