20413321446223 has 4 divisors (see below), whose sum is σ = 20413365028488. Its totient is φ = 20413277863960.

The previous prime is 20413321446179. The next prime is 20413321446247. The reversal of 20413321446223 is 32264412331402.

It is a happy number.

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 20413321446223 - 2²⁹ = 20412784575311 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 (20413321446283) 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, 21080836 + ... + 22027897.

It is an arithmetic number, because the mean of its divisors is an integer number (5103341257122).

Almost surely, 2^{20413321446223} is an apocalyptic number.

20413321446223 is a deficient number, since it is larger than the sum of its proper divisors (43582265).

20413321446223 is an equidigital number, since it uses as much as digits as its factorization.

20413321446223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43582264.

The product of its (nonzero) digits is 165888, while the sum is 37.

Adding to 20413321446223 its reverse (32264412331402), we get a palindrome (52677733777625).

The spelling of 20413321446223 in words is "twenty trillion, four hundred thirteen billion, three hundred twenty-one million, four hundred forty-six thousand, two hundred twenty-three".