111232232031 has 4 divisors (see below), whose sum is σ = 148309642712. Its totient is φ = 74154821352.

The previous prime is 111232232021. The next prime is 111232232039. The reversal of 111232232031 is 130232232111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130232232111 = 3 ⋅43410744037.

It is not a de Polignac number, because 111232232031 - 2³⁰ = 110158490207 is a prime.

It is a super-2 number, since 2×111232232031² (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 = 111232231989 and 111232232007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111232232039) 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, 18538705336 + ... + 18538705341.

It is an arithmetic number, because the mean of its divisors is an integer number (37077410678).

Almost surely, 2^111232232031 is an apocalyptic number.

111232232031 is a deficient number, since it is larger than the sum of its proper divisors (37077410681).

111232232031 is an equidigital number, since it uses as much as digits as its factorization.

111232232031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37077410680.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 111232232031 its reverse (130232232111), we get a palindrome (241464464142).

The spelling of 111232232031 in words is "one hundred eleven billion, two hundred thirty-two million, two hundred thirty-two thousand, thirty-one".