111012330331231 has 4 divisors (see below), whose sum is σ = 126871234664272. Its totient is φ = 95153425998192.

The previous prime is 111012330331169. The next prime is 111012330331313. The reversal of 111012330331231 is 132133033210111.

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

It is a cyclic number.

It is not a de Polignac number, because 111012330331231 - 2⁹ = 111012330330719 is a prime.

It is a super-2 number, since 2×111012330331231² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111012330331196 and 111012330331205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111012330332231) 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, 7929452166510 + ... + 7929452166523.

It is an arithmetic number, because the mean of its divisors is an integer number (31717808666068).

Almost surely, 2^{111012330331231} is an apocalyptic number.

111012330331231 is a deficient number, since it is larger than the sum of its proper divisors (15858904333041).

111012330331231 is an equidigital number, since it uses as much as digits as its factorization.

111012330331231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15858904333040.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 111012330331231 its reverse (132133033210111), we get a palindrome (243145363541342).

The spelling of 111012330331231 in words is "one hundred eleven trillion, twelve billion, three hundred thirty million, three hundred thirty-one thousand, two hundred thirty-one".