20013330229 has 6 divisors (see below), whose sum is σ = 20568851394. Its totient is φ = 19472428080.

The previous prime is 20013330191. The next prime is 20013330251. The reversal of 20013330229 is 92203331002.

It can be written as a sum of positive squares in 3 ways, for example, as 4650967204 + 15362363025 = 68198^2 + 123945^2 .

It is a de Polignac number, because none of the positive numbers 2^k-20013330229 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 (20013337229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7308102 + ... + 7310839.

It is an arithmetic number, because the mean of its divisors is an integer number (3428141899).

Almost surely, 2^20013330229 is an apocalyptic number.

It is an amenable number.

20013330229 is a deficient number, since it is larger than the sum of its proper divisors (555521165).

20013330229 is an equidigital number, since it uses as much as digits as its factorization.

20013330229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14619015 (or 14618978 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The spelling of 20013330229 in words is "twenty billion, thirteen million, three hundred thirty thousand, two hundred twenty-nine".