1111202443231 has 4 divisors (see below), whose sum is σ = 1127787554392. Its totient is φ = 1094617332072.

The previous prime is 1111202443229. The next prime is 1111202443301. The reversal of 1111202443231 is 1323442021111.

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 1111202443231 - 2¹ = 1111202443229 is a prime.

It is a super-2 number, since 2×1111202443231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111202443196 and 1111202443205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111202473231) 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, 8292555480 + ... + 8292555613.

It is an arithmetic number, because the mean of its divisors is an integer number (281946888598).

Almost surely, 2^{1111202443231} is an apocalyptic number.

1111202443231 is a deficient number, since it is larger than the sum of its proper divisors (16585111161).

1111202443231 is an equidigital number, since it uses as much as digits as its factorization.

1111202443231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16585111160.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 1111202443231 its reverse (1323442021111), we get a palindrome (2434644464342).

The spelling of 1111202443231 in words is "one trillion, one hundred eleven billion, two hundred two million, four hundred forty-three thousand, two hundred thirty-one".