111213332231 has 8 divisors (see below), whose sum is σ = 113272221600. Its totient is φ = 109168123680.

The previous prime is 111213332213. The next prime is 111213332249. The reversal of 111213332231 is 132233312111.

It is an interprime number because it is at equal distance from previous prime (111213332213) and next prime (111213332249).

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

It is a cyclic number.

It is not a de Polignac number, because 111213332231 - 2³⁴ = 94033463047 is a prime.

It is a super-2 number, since 2×111213332231² (a number of 23 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 = 111213332197 and 111213332206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111213332431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3403796 + ... + 3436313.

It is an arithmetic number, because the mean of its divisors is an integer number (14159027700).

Almost surely, 2^111213332231 is an apocalyptic number.

111213332231 is a deficient number, since it is larger than the sum of its proper divisors (2058889369).

111213332231 is an equidigital number, since it uses as much as digits as its factorization.

111213332231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6840409.

The product of its digits is 648, while the sum is 23.

Adding to 111213332231 its reverse (132233312111), we get a palindrome (243446644342).

The spelling of 111213332231 in words is "one hundred eleven billion, two hundred thirteen million, three hundred thirty-two thousand, two hundred thirty-one".