20124124 has 12 divisors (see below), whose sum is σ = 37288944. Its totient is φ = 9470144.

The previous prime is 20124113. The next prime is 20124127. The reversal of 20124124 is 42142102.

It is a junction number, because it is equal to n+sod(n) for n = 20124098 and 20124107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20124127) 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, 147904 + ... + 148039.

It is an arithmetic number, because the mean of its divisors is an integer number (3107412).

Almost surely, 2^20124124 is an apocalyptic number.

It is an amenable number.

20124124 is a deficient number, since it is larger than the sum of its proper divisors (17164820).

20124124 is a wasteful number, since it uses less digits than its factorization.

20124124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295964 (or 295962 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 20124124 is about 4485.9919750263. The cubic root of 20124124 is about 272.0021445909.

Adding to 20124124 its reverse (42142102), we get a palindrome (62266226).

The spelling of 20124124 in words is "twenty million, one hundred twenty-four thousand, one hundred twenty-four".