11203020013 has 2 divisors, whose sum is σ = 11203020014. Its totient is φ = 11203020012.

The previous prime is 11203020001. The next prime is 11203020097. The reversal of 11203020013 is 31002030211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9261560169 + 1941459844 = 96237^2 + 44062^2 .

It is a cyclic number.

It is not a de Polignac number, because 11203020013 - 2⁹ = 11203019501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11203019975 and 11203020002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11203320013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5601510006 + 5601510007.

It is an arithmetic number, because the mean of its divisors is an integer number (5601510007).

Almost surely, 2^11203020013 is an apocalyptic number.

It is an amenable number.

11203020013 is a deficient number, since it is larger than the sum of its proper divisors (1).

11203020013 is an equidigital number, since it uses as much as digits as its factorization.

11203020013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 11203020013 its reverse (31002030211), we get a palindrome (42205050224).

The spelling of 11203020013 in words is "eleven billion, two hundred three million, twenty thousand, thirteen".