20213313223 has 4 divisors (see below), whose sum is σ = 20309111128. Its totient is φ = 20117515320.

The previous prime is 20213313221. The next prime is 20213313271. The reversal of 20213313223 is 32231331202.

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 20213313223 - 2¹ = 20213313221 is a prime.

It is a super-2 number, since 2×20213313223² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20213313194 and 20213313203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213313221) 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, 47898636 + ... + 47899057.

It is an arithmetic number, because the mean of its divisors is an integer number (5077277782).

Almost surely, 2^20213313223 is an apocalyptic number.

20213313223 is a deficient number, since it is larger than the sum of its proper divisors (95797905).

20213313223 is an equidigital number, since it uses as much as digits as its factorization.

20213313223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95797904.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20213313223 its reverse (32231331202), we get a palindrome (52444644425).

The spelling of 20213313223 in words is "twenty billion, two hundred thirteen million, three hundred thirteen thousand, two hundred twenty-three".