20302102013 has 2 divisors, whose sum is σ = 20302102014. Its totient is φ = 20302102012.

The previous prime is 20302102003. The next prime is 20302102021. The reversal of 20302102013 is 31020120302.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11292675289 + 9009426724 = 106267^2 + 94918^2 .

It is a cyclic number.

It is not a de Polignac number, because 20302102013 - 2¹⁶ = 20302036477 is a prime.

It is a super-2 number, since 2×20302102013² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20302102003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10151051006 + 10151051007.

It is an arithmetic number, because the mean of its divisors is an integer number (10151051007).

Almost surely, 2^20302102013 is an apocalyptic number.

It is an amenable number.

20302102013 is a deficient number, since it is larger than the sum of its proper divisors (1).

20302102013 is an equidigital number, since it uses as much as digits as its factorization.

20302102013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20302102013 its reverse (31020120302), we get a palindrome (51322222315).

The spelling of 20302102013 in words is "twenty billion, three hundred two million, one hundred two thousand, thirteen".