20302142013 has 12 divisors (see below), whose sum is σ = 29361045948. Its totient is φ = 13518270720.

The previous prime is 20302142011. The next prime is 20302142041. The reversal of 20302142013 is 31024120302.

It can be written as a sum of positive squares in 2 ways, for example, as 11172912804 + 9129229209 = 105702^2 + 95547^2 .

It is not a de Polignac number, because 20302142013 - 2¹ = 20302142011 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302142011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1366420 + ... + 1381197.

It is an arithmetic number, because the mean of its divisors is an integer number (2446753829).

Almost surely, 2^20302142013 is an apocalyptic number.

It is an amenable number.

20302142013 is a deficient number, since it is larger than the sum of its proper divisors (9058903935).

20302142013 is a wasteful number, since it uses less digits than its factorization.

20302142013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2748444 (or 2748441 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20302142013 its reverse (31024120302), we get a palindrome (51326262315).

The spelling of 20302142013 in words is "twenty billion, three hundred two million, one hundred forty-two thousand, thirteen".