111113231043 has 4 divisors (see below), whose sum is σ = 148150974728. Its totient is φ = 74075487360.

The previous prime is 111113231017. The next prime is 111113231107. The reversal of 111113231043 is 340132311111.

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

It is not a de Polignac number, because 111113231043 - 2⁶ = 111113230979 is a prime.

It is a super-2 number, since 2×111113231043² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111113231003) 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, 18518871838 + ... + 18518871843.

It is an arithmetic number, because the mean of its divisors is an integer number (37037743682).

Almost surely, 2^111113231043 is an apocalyptic number.

111113231043 is a deficient number, since it is larger than the sum of its proper divisors (37037743685).

111113231043 is an equidigital number, since it uses as much as digits as its factorization.

111113231043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37037743684.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 111113231043 its reverse (340132311111), we get a palindrome (451245542154).

The spelling of 111113231043 in words is "one hundred eleven billion, one hundred thirteen million, two hundred thirty-one thousand, forty-three".