11203112013 has 16 divisors (see below), whose sum is σ = 15841753920. Its totient is φ = 7018027776.

The previous prime is 11203111993. The next prime is 11203112051. The reversal of 11203112013 is 31021130211.

It is a happy number.

It is not a de Polignac number, because 11203112013 - 2⁸ = 11203111757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11203111983 and 11203112001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11203102013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145870 + ... + 209007.

It is an arithmetic number, because the mean of its divisors is an integer number (990109620).

Almost surely, 2^11203112013 is an apocalyptic number.

It is an amenable number.

11203112013 is a deficient number, since it is larger than the sum of its proper divisors (4638641907).

11203112013 is a wasteful number, since it uses less digits than its factorization.

11203112013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355516.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11203112013 its reverse (31021130211), we get a palindrome (42224242224).

The spelling of 11203112013 in words is "eleven billion, two hundred three million, one hundred twelve thousand, thirteen".