20116023 has 4 divisors (see below), whose sum is σ = 26821368. Its totient is φ = 13410680.

The previous prime is 20116021. The next prime is 20116039. The reversal of 20116023 is 32061102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20116023 - 2¹ = 20116021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20115993 and 20116011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20116021) 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, 3352668 + ... + 3352673.

It is an arithmetic number, because the mean of its divisors is an integer number (6705342).

Almost surely, 2^20116023 is an apocalyptic number.

20116023 is a deficient number, since it is larger than the sum of its proper divisors (6705345).

20116023 is an equidigital number, since it uses as much as digits as its factorization.

20116023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6705344.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 20116023 is about 4485.0889623284. The cubic root of 20116023 is about 271.9656413853.

Adding to 20116023 its reverse (32061102), we get a palindrome (52177125).

The spelling of 20116023 in words is "twenty million, one hundred sixteen thousand, twenty-three".