20230031103213 has 4 divisors (see below), whose sum is σ = 26973374804288. Its totient is φ = 13486687402140.

The previous prime is 20230031103203. The next prime is 20230031103287. The reversal of 20230031103213 is 31230113003202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-20230031103213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20230031103213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20230031103203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3371671850533 + ... + 3371671850538.

It is an arithmetic number, because the mean of its divisors is an integer number (6743343701072).

Almost surely, 2^{20230031103213} is an apocalyptic number.

It is an amenable number.

20230031103213 is a deficient number, since it is larger than the sum of its proper divisors (6743343701075).

20230031103213 is an equidigital number, since it uses as much as digits as its factorization.

20230031103213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6743343701074.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20230031103213 its reverse (31230113003202), we get a palindrome (51460144106415).

The spelling of 20230031103213 in words is "twenty trillion, two hundred thirty billion, thirty-one million, one hundred three thousand, two hundred thirteen".