20010340013 has 2 divisors, whose sum is σ = 20010340014. Its totient is φ = 20010340012.

The previous prime is 20010340001. The next prime is 20010340019. The reversal of 20010340013 is 31004301002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14019270409 + 5991069604 = 118403^2 + 77402^2 .

It is a cyclic number.

It is not a de Polignac number, because 20010340013 - 2⁸ = 20010339757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20010340013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20010340019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005170006 + 10005170007.

It is an arithmetic number, because the mean of its divisors is an integer number (10005170007).

Almost surely, 2^20010340013 is an apocalyptic number.

It is an amenable number.

20010340013 is a deficient number, since it is larger than the sum of its proper divisors (1).

20010340013 is an equidigital number, since it uses as much as digits as its factorization.

20010340013 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 20010340013 its reverse (31004301002), we get a palindrome (51014641015).

The spelling of 20010340013 in words is "twenty billion, ten million, three hundred forty thousand, thirteen".