11121032013 has 96 divisors (see below), whose sum is σ = 19461802752. Its totient is φ = 5588352000.

The previous prime is 11121032009. The next prime is 11121032057. The reversal of 11121032013 is 31023012111.

It is a happy number.

It is not a de Polignac number, because 11121032013 - 2² = 11121032009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11121031983 and 11121032001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121032093) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 18503913 + ... + 18504513.

It is an arithmetic number, because the mean of its divisors is an integer number (202727112).

Almost surely, 2^11121032013 is an apocalyptic number.

11121032013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11121032013 is a deficient number, since it is larger than the sum of its proper divisors (8340770739).

11121032013 is a wasteful number, since it uses less digits than its factorization.

11121032013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075 (or 1068 counting only the distinct ones).

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

Adding to 11121032013 its reverse (31023012111), we get a palindrome (42144044124).

The spelling of 11121032013 in words is "eleven billion, one hundred twenty-one million, thirty-two thousand, thirteen".