20453061227 has 4 divisors (see below), whose sum is σ = 20462863536. Its totient is φ = 20443258920.

The previous prime is 20453061179. The next prime is 20453061263. The reversal of 20453061227 is 72216035402.

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

It is a cyclic number.

It is not a de Polignac number, because 20453061227 - 2¹⁶ = 20452995691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20453061193 and 20453061202.

It is not an unprimeable number, because it can be changed into a prime (20483061227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4898024 + ... + 4902197.

It is an arithmetic number, because the mean of its divisors is an integer number (5115715884).

Almost surely, 2^20453061227 is an apocalyptic number.

20453061227 is a deficient number, since it is larger than the sum of its proper divisors (9802309).

20453061227 is an equidigital number, since it uses as much as digits as its factorization.

20453061227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9802308.

The product of its (nonzero) digits is 20160, while the sum is 32.

Adding to 20453061227 its reverse (72216035402), we get a palindrome (92669096629).

The spelling of 20453061227 in words is "twenty billion, four hundred fifty-three million, sixty-one thousand, two hundred twenty-seven".