111231240043 has 24 divisors (see below), whose sum is σ = 141243781104. Its totient is φ = 86618750400.

The previous prime is 111231240019. The next prime is 111231240049. The reversal of 111231240043 is 340042132111.

It is not a de Polignac number, because 111231240043 - 2²¹ = 111229142891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111231239996 and 111231240023.

It is not an unprimeable number, because it can be changed into a prime (111231240049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 796173 + ... + 925393.

It is an arithmetic number, because the mean of its divisors is an integer number (5885157546).

Almost surely, 2^111231240043 is an apocalyptic number.

111231240043 is a deficient number, since it is larger than the sum of its proper divisors (30012541061).

111231240043 is a wasteful number, since it uses less digits than its factorization.

111231240043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130843 (or 130836 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 111231240043 its reverse (340042132111), we get a palindrome (451273372154).

The spelling of 111231240043 in words is "one hundred eleven billion, two hundred thirty-one million, two hundred forty thousand, forty-three".