20223456413 has 4 divisors (see below), whose sum is σ = 20223750108. Its totient is φ = 20223162720.

The previous prime is 20223456371. The next prime is 20223456419. The reversal of 20223456413 is 31465432202.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 18895801444 + 1327654969 = 137462^2 + 36437^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20223456413 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 20223456413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20223456419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18503 + ... + 201963.

It is an arithmetic number, because the mean of its divisors is an integer number (5055937527).

Almost surely, 2^20223456413 is an apocalyptic number.

It is an amenable number.

20223456413 is a deficient number, since it is larger than the sum of its proper divisors (293695).

20223456413 is a wasteful number, since it uses less digits than its factorization.

20223456413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293694.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 20223456413 its reverse (31465432202), we get a palindrome (51688888615).

The spelling of 20223456413 in words is "twenty billion, two hundred twenty-three million, four hundred fifty-six thousand, four hundred thirteen".