111232432013 has 4 divisors (see below), whose sum is σ = 117086770560. Its totient is φ = 105378093468.

The previous prime is 111232432009. The next prime is 111232432021. The reversal of 111232432013 is 310234232111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111232432013 - 2² = 111232432009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111232432013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111232432033) 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, 2927169245 + ... + 2927169282.

It is an arithmetic number, because the mean of its divisors is an integer number (29271692640).

Almost surely, 2^111232432013 is an apocalyptic number.

It is an amenable number.

111232432013 is a deficient number, since it is larger than the sum of its proper divisors (5854338547).

111232432013 is an equidigital number, since it uses as much as digits as its factorization.

111232432013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5854338546.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 111232432013 its reverse (310234232111), we get a palindrome (421466664124).

The spelling of 111232432013 in words is "one hundred eleven billion, two hundred thirty-two million, four hundred thirty-two thousand, thirteen".