20213010031223 has 4 divisors (see below), whose sum is σ = 20213092930680. Its totient is φ = 20212927131768.

The previous prime is 20213010031169. The next prime is 20213010031283. The reversal of 20213010031223 is 32213001031202.

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 20213010031223 - 2¹⁴ = 20213010014839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20213010031195 and 20213010031204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213010031283) 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, 41082908 + ... + 41572001.

It is an arithmetic number, because the mean of its divisors is an integer number (5053273232670).

Almost surely, 2^{20213010031223} is an apocalyptic number.

20213010031223 is a deficient number, since it is larger than the sum of its proper divisors (82899457).

20213010031223 is an equidigital number, since it uses as much as digits as its factorization.

20213010031223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82899456.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20213010031223 its reverse (32213001031202), we get a palindrome (52426011062425).

The spelling of 20213010031223 in words is "twenty trillion, two hundred thirteen billion, ten million, thirty-one thousand, two hundred twenty-three".