20123384 has 16 divisors (see below), whose sum is σ = 37836600. Its totient is φ = 10033632.

The previous prime is 20123381. The next prime is 20123387. The reversal of 20123384 is 48332102.

It is an interprime number because it is at equal distance from previous prime (20123381) and next prime (20123387).

It is a super-2 number, since 2×20123384² = 809901167222912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123381) 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, 287 + ... + 6350.

Almost surely, 2^20123384 is an apocalyptic number.

It is an amenable number.

20123384 is a deficient number, since it is larger than the sum of its proper divisors (17713216).

20123384 is a wasteful number, since it uses less digits than its factorization.

20123384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7022 (or 7018 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 20123384 is about 4485.9094952975. The cubic root of 20123384 is about 271.9988105484.

Adding to 20123384 its reverse (48332102), we get a palindrome (68455486).

The spelling of 20123384 in words is "twenty million, one hundred twenty-three thousand, three hundred eighty-four".