20463011 has 4 divisors (see below), whose sum is σ = 20585712. Its totient is φ = 20340312.

The previous prime is 20462993. The next prime is 20463017. The reversal of 20463011 is 11036402.

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-20463011 is a prime.

It is a super-2 number, since 2×20463011² = 837469638372242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20463017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61100 + ... + 61433.

It is an arithmetic number, because the mean of its divisors is an integer number (5146428).

Almost surely, 2^20463011 is an apocalyptic number.

20463011 is a deficient number, since it is larger than the sum of its proper divisors (122701).

20463011 is a wasteful number, since it uses less digits than its factorization.

20463011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122700.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 20463011 is about 4523.6059731148. The cubic root of 20463011 is about 273.5204774631.

Adding to 20463011 its reverse (11036402), we get a palindrome (31499413).

The spelling of 20463011 in words is "twenty million, four hundred sixty-three thousand, eleven".