11121302031 has 8 divisors (see below), whose sum is σ = 16946745984. Its totient is φ = 6355029720.

The previous prime is 11121301993. The next prime is 11121302081. The reversal of 11121302031 is 13020312111.

It is a happy number.

11121302031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11121302031 - 2¹⁰ = 11121301007 is a prime.

It is a super-2 number, since 2×11121302031² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11121302031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121302081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264792885 + ... + 264792926.

It is an arithmetic number, because the mean of its divisors is an integer number (2118343248).

Almost surely, 2^11121302031 is an apocalyptic number.

11121302031 is a deficient number, since it is larger than the sum of its proper divisors (5825443953).

11121302031 is an equidigital number, since it uses as much as digits as its factorization.

11121302031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529585821.

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

Adding to 11121302031 its reverse (13020312111), we get a palindrome (24141614142).

The spelling of 11121302031 in words is "eleven billion, one hundred twenty-one million, three hundred two thousand, thirty-one".