20682123 has 16 divisors (see below), whose sum is σ = 34381056. Its totient is φ = 10743840.

The previous prime is 20682119. The next prime is 20682131. The reversal of 20682123 is 32128602.

It is not a de Polignac number, because 20682123 - 2² = 20682119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20682093 and 20682102.

It is not an unprimeable number, because it can be changed into a prime (20682173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44536 + ... + 44997.

It is an arithmetic number, because the mean of its divisors is an integer number (2148816).

Almost surely, 2^20682123 is an apocalyptic number.

20682123 is a deficient number, since it is larger than the sum of its proper divisors (13698933).

20682123 is a wasteful number, since it uses less digits than its factorization.

20682123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89554.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 20682123 is about 4547.7602179534. The cubic root of 20682123 is about 274.4932729165.

The spelling of 20682123 in words is "twenty million, six hundred eighty-two thousand, one hundred twenty-three".