20963023 has 8 divisors (see below), whose sum is σ = 23364720. Its totient is φ = 18691200.

The previous prime is 20963017. The next prime is 20963029. The reversal of 20963023 is 32036902.

It is an interprime number because it is at equal distance from previous prime (20963017) and next prime (20963029).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20963023 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 (20963029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32128 + ... + 32773.

It is an arithmetic number, because the mean of its divisors is an integer number (2920590).

Almost surely, 2^20963023 is an apocalyptic number.

20963023 is a deficient number, since it is larger than the sum of its proper divisors (2401697).

20963023 is a wasteful number, since it uses less digits than its factorization.

20963023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64937.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 20963023 is about 4578.5393959209. The cubic root of 20963023 is about 275.7303911694.

Adding to 20963023 its reverse (32036902), we get a palindrome (52999925).

The spelling of 20963023 in words is "twenty million, nine hundred sixty-three thousand, twenty-three".