20210310223 has 4 divisors (see below), whose sum is σ = 20211346168. Its totient is φ = 20209274280.

The previous prime is 20210310217. The next prime is 20210310233. The reversal of 20210310223 is 32201301202.

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 20210310223 - 2⁹ = 20210309711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20210310197 and 20210310206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210310233) 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, 488136 + ... + 527917.

It is an arithmetic number, because the mean of its divisors is an integer number (5052836542).

Almost surely, 2^20210310223 is an apocalyptic number.

20210310223 is a deficient number, since it is larger than the sum of its proper divisors (1035945).

20210310223 is a wasteful number, since it uses less digits than its factorization.

20210310223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035944.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20210310223 its reverse (32201301202), we get a palindrome (52411611425).

The spelling of 20210310223 in words is "twenty billion, two hundred ten million, three hundred ten thousand, two hundred twenty-three".