20330212233013 has 4 divisors (see below), whose sum is σ = 20330263779660. Its totient is φ = 20330160686368.

The previous prime is 20330212232969. The next prime is 20330212233139. The reversal of 20330212233013 is 31033221203302.

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 12923579223844 + 7406633009169 = 3594938^2 + 2721513^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20330212233013 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 (20330212233413) 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, 25177120 + ... + 25972057.

It is an arithmetic number, because the mean of its divisors is an integer number (5082565944915).

Almost surely, 2^{20330212233013} is an apocalyptic number.

It is an amenable number.

20330212233013 is a deficient number, since it is larger than the sum of its proper divisors (51546647).

20330212233013 is an equidigital number, since it uses as much as digits as its factorization.

20330212233013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51546646.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 20330212233013 its reverse (31033221203302), we get a palindrome (51363433436315).

The spelling of 20330212233013 in words is "twenty trillion, three hundred thirty billion, two hundred twelve million, two hundred thirty-three thousand, thirteen".