20200111013 has 2 divisors, whose sum is σ = 20200111014. Its totient is φ = 20200111012.

The previous prime is 20200111007. The next prime is 20200111033. The reversal of 20200111013 is 31011100202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20123408449 + 76702564 = 141857^2 + 8758^2 .

It is a cyclic number.

It is not a de Polignac number, because 20200111013 - 2⁸ = 20200110757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20200110985 and 20200111003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20200111033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100055506 + 10100055507.

It is an arithmetic number, because the mean of its divisors is an integer number (10100055507).

Almost surely, 2^20200111013 is an apocalyptic number.

It is an amenable number.

20200111013 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200111013 is an equidigital number, since it uses as much as digits as its factorization.

20200111013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 20200111013 its reverse (31011100202), we get a palindrome (51211211215).

The spelling of 20200111013 in words is "twenty billion, two hundred million, one hundred eleven thousand, thirteen".