20330223013 has 4 divisors (see below), whose sum is σ = 20330746380. Its totient is φ = 20329699648.

The previous prime is 20330222993. The next prime is 20330223031. The reversal of 20330223013 is 31032203302.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10936348929 + 9393874084 = 104577^2 + 96922^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20330223013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20330223073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198298 + ... + 282811.

It is an arithmetic number, because the mean of its divisors is an integer number (5082686595).

Almost surely, 2^20330223013 is an apocalyptic number.

It is an amenable number.

20330223013 is a deficient number, since it is larger than the sum of its proper divisors (523367).

20330223013 is an equidigital number, since it uses as much as digits as its factorization.

20330223013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523366.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20330223013 its reverse (31032203302), we get a palindrome (51362426315).

The spelling of 20330223013 in words is "twenty billion, three hundred thirty million, two hundred twenty-three thousand, thirteen".