20463101 has 4 divisors (see below), whose sum is σ = 20577600. Its totient is φ = 20348604.

The previous prime is 20463097. The next prime is 20463103. The reversal of 20463101 is 10136402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10136402 = 2 ⋅5068201.

It is a cyclic number.

It is not a de Polignac number, because 20463101 - 2² = 20463097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20463101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20463103) 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, 56981 + ... + 57338.

It is an arithmetic number, because the mean of its divisors is an integer number (5144400).

Almost surely, 2^20463101 is an apocalyptic number.

It is an amenable number.

20463101 is a deficient number, since it is larger than the sum of its proper divisors (114499).

20463101 is a wasteful number, since it uses less digits than its factorization.

20463101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114498.

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

The square root of 20463101 is about 4523.6159209199. The cubic root of 20463101 is about 273.5208784599.

Adding to 20463101 its reverse (10136402), we get a palindrome (30599503).

The spelling of 20463101 in words is "twenty million, four hundred sixty-three thousand, one hundred one".