11121200032331 has 4 divisors (see below), whose sum is σ = 11121374823000. Its totient is φ = 11121025241664.

The previous prime is 11121200032303. The next prime is 11121200032337. The reversal of 11121200032331 is 13323000212111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11121200032331 is a prime.

It is a super-2 number, since 2×11121200032331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11121200032337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87299861 + ... + 87427158.

It is an arithmetic number, because the mean of its divisors is an integer number (2780343705750).

Almost surely, 2^{11121200032331} is an apocalyptic number.

11121200032331 is a deficient number, since it is larger than the sum of its proper divisors (174790669).

11121200032331 is an equidigital number, since it uses as much as digits as its factorization.

11121200032331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174790668.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 11121200032331 its reverse (13323000212111), we get a palindrome (24444200244442).

The spelling of 11121200032331 in words is "eleven trillion, one hundred twenty-one billion, two hundred million, thirty-two thousand, three hundred thirty-one".