20500123067 has 8 divisors (see below), whose sum is σ = 20874120000. Its totient is φ = 20127010824.

The previous prime is 20500123043. The next prime is 20500123117. The reversal of 20500123067 is 76032100502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20500123067 - 2⁶ = 20500123003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20500123367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174317 + ... + 267182.

It is an arithmetic number, because the mean of its divisors is an integer number (2609265000).

Almost surely, 2^20500123067 is an apocalyptic number.

20500123067 is a deficient number, since it is larger than the sum of its proper divisors (373996933).

20500123067 is an equidigital number, since it uses as much as digits as its factorization.

20500123067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442345.

The product of its (nonzero) digits is 2520, while the sum is 26.

Adding to 20500123067 its reverse (76032100502), we get a palindrome (96532223569).

The spelling of 20500123067 in words is "twenty billion, five hundred million, one hundred twenty-three thousand, sixty-seven".