11121230013 has 4 divisors (see below), whose sum is σ = 14828306688. Its totient is φ = 7414153340.

The previous prime is 11121229963. The next prime is 11121230027. The reversal of 11121230013 is 31003212111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11121230013 - 2⁹ = 11121229501 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11121229974 and 11121230001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121230413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1853538333 + ... + 1853538338.

It is an arithmetic number, because the mean of its divisors is an integer number (3707076672).

Almost surely, 2^11121230013 is an apocalyptic number.

It is an amenable number.

11121230013 is a deficient number, since it is larger than the sum of its proper divisors (3707076675).

11121230013 is an equidigital number, since it uses as much as digits as its factorization.

11121230013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3707076674.

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

Adding to 11121230013 its reverse (31003212111), we get a palindrome (42124442124).

The spelling of 11121230013 in words is "eleven billion, one hundred twenty-one million, two hundred thirty thousand, thirteen".