11203212113 has 2 divisors, whose sum is σ = 11203212114. Its totient is φ = 11203212112.

The previous prime is 11203212089. The next prime is 11203212149. The reversal of 11203212113 is 31121230211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11195332864 + 7879249 = 105808^2 + 2807^2 .

It is a cyclic number.

It is not a de Polignac number, because 11203212113 - 2⁸ = 11203211857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11203212091 and 11203212100.

It is not a weakly prime, because it can be changed into another prime (11203212413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5601606056 + 5601606057.

It is an arithmetic number, because the mean of its divisors is an integer number (5601606057).

Almost surely, 2^11203212113 is an apocalyptic number.

It is an amenable number.

11203212113 is a deficient number, since it is larger than the sum of its proper divisors (1).

11203212113 is an equidigital number, since it uses as much as digits as its factorization.

11203212113 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 17.

Adding to 11203212113 its reverse (31121230211), we get a palindrome (42324442324).

The spelling of 11203212113 in words is "eleven billion, two hundred three million, two hundred twelve thousand, one hundred thirteen".