20300480461 has 4 divisors (see below), whose sum is σ = 20306335900. Its totient is φ = 20294625024.

The previous prime is 20300480437. The next prime is 20300480483. The reversal of 20300480461 is 16408400302.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10304280100 + 9996200361 = 101510^2 + 99981^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20300480461 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 (20300480491) 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, 2922516 + ... + 2929453.

It is an arithmetic number, because the mean of its divisors is an integer number (5076583975).

Almost surely, 2^20300480461 is an apocalyptic number.

It is an amenable number.

20300480461 is a deficient number, since it is larger than the sum of its proper divisors (5855439).

20300480461 is an equidigital number, since it uses as much as digits as its factorization.

20300480461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5855438.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 20300480461 its reverse (16408400302), we get a palindrome (36708880763).

The spelling of 20300480461 in words is "twenty billion, three hundred million, four hundred eighty thousand, four hundred sixty-one".