20101063 has 4 divisors (see below), whose sum is σ = 20136960. Its totient is φ = 20065168.

The previous prime is 20101013. The next prime is 20101073. The reversal of 20101063 is 36010102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20101063 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 (20101013) 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, 17095 + ... + 18232.

It is an arithmetic number, because the mean of its divisors is an integer number (5034240).

Almost surely, 2^20101063 is an apocalyptic number.

20101063 is a deficient number, since it is larger than the sum of its proper divisors (35897).

20101063 is an equidigital number, since it uses as much as digits as its factorization.

20101063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35896.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 20101063 is about 4483.4209037297. The cubic root of 20101063 is about 271.8982056733.

Adding to 20101063 its reverse (36010102), we get a palindrome (56111165).

The spelling of 20101063 in words is "twenty million, one hundred one thousand, sixty-three".