111220131032233 has 4 divisors (see below), whose sum is σ = 111220152498180. Its totient is φ = 111220109566288.

The previous prime is 111220131032203. The next prime is 111220131032237. The reversal of 111220131032233 is 332230131022111.

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

It can be written as a sum of positive squares in 2 ways, for example, as 95332317685929 + 15887813346304 = 9763827^2 + 3985952^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111220131032233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111220131032198 and 111220131032207.

It is not an unprimeable number, because it can be changed into a prime (111220131032237) 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, 2375283 + ... + 15102391.

It is an arithmetic number, because the mean of its divisors is an integer number (27805038124545).

Almost surely, 2^{111220131032233} is an apocalyptic number.

It is an amenable number.

111220131032233 is a deficient number, since it is larger than the sum of its proper divisors (21465947).

111220131032233 is an equidigital number, since it uses as much as digits as its factorization.

111220131032233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21465946.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 111220131032233 its reverse (332230131022111), we get a palindrome (443450262054344).

The spelling of 111220131032233 in words is "one hundred eleven trillion, two hundred twenty billion, one hundred thirty-one million, thirty-two thousand, two hundred thirty-three".