20003210311223 has 4 divisors (see below), whose sum is σ = 20089060999488. Its totient is φ = 19917359622960.

The previous prime is 20003210311211. The next prime is 20003210311297. The reversal of 20003210311223 is 32211301230002.

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 20003210311223 - 2³⁴ = 19986030442039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20003210311195 and 20003210311204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003210311423) 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, 42925343783 + ... + 42925344248.

It is an arithmetic number, because the mean of its divisors is an integer number (5022265249872).

Almost surely, 2^{20003210311223} is an apocalyptic number.

20003210311223 is a deficient number, since it is larger than the sum of its proper divisors (85850688265).

20003210311223 is an equidigital number, since it uses as much as digits as its factorization.

20003210311223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85850688264.

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

Adding to 20003210311223 its reverse (32211301230002), we get a palindrome (52214511541225).

The spelling of 20003210311223 in words is "twenty trillion, three billion, two hundred ten million, three hundred eleven thousand, two hundred twenty-three".