20124367 has 4 divisors (see below), whose sum is σ = 20133520. Its totient is φ = 20115216.

The previous prime is 20124361. The next prime is 20124371. The reversal of 20124367 is 76342102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 76342102 = 2 ⋅38171051.

It is a cyclic number.

It is not a de Polignac number, because 20124367 - 2³ = 20124359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20124361) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 934 + ... + 6412.

It is an arithmetic number, because the mean of its divisors is an integer number (5033380).

Almost surely, 2^20124367 is an apocalyptic number.

20124367 is a deficient number, since it is larger than the sum of its proper divisors (9153).

20124367 is an equidigital number, since it uses as much as digits as its factorization.

20124367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9152.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 20124367 is about 4486.0190592551. The cubic root of 20124367 is about 272.0032394006.

Adding to 20124367 its reverse (76342102), we get a palindrome (96466469).

The spelling of 20124367 in words is "twenty million, one hundred twenty-four thousand, three hundred sixty-seven".