20303124 has 12 divisors (see below), whose sum is σ = 47373984. Its totient is φ = 6767704.

The previous prime is 20303123. The next prime is 20303137. The reversal of 20303124 is 42130302.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20303123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845952 + ... + 845975.

It is an arithmetic number, because the mean of its divisors is an integer number (3947832).

Almost surely, 2^20303124 is an apocalyptic number.

It is an amenable number.

20303124 is an abundant number, since it is smaller than the sum of its proper divisors (27070860).

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

20303124 is a wasteful number, since it uses less digits than its factorization.

20303124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691934 (or 1691932 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 20303124 is about 4505.8988004615. The cubic root of 20303124 is about 272.8062331774.

Adding to 20303124 its reverse (42130302), we get a palindrome (62433426).

The spelling of 20303124 in words is "twenty million, three hundred three thousand, one hundred twenty-four".