112111232161 has 2 divisors, whose sum is σ = 112111232162. Its totient is φ = 112111232160.

The previous prime is 112111232047. The next prime is 112111232227. The reversal of 112111232161 is 161232111211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109799449600 + 2311782561 = 331360^2 + 48081^2 .

It is a cyclic number.

It is not a de Polignac number, because 112111232161 - 2⁹ = 112111231649 is a prime.

It is not a weakly prime, because it can be changed into another prime (112111232461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56055616080 + 56055616081.

It is an arithmetic number, because the mean of its divisors is an integer number (56055616081).

Almost surely, 2^112111232161 is an apocalyptic number.

It is an amenable number.

112111232161 is a deficient number, since it is larger than the sum of its proper divisors (1).

112111232161 is an equidigital number, since it uses as much as digits as its factorization.

112111232161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 22.

Adding to 112111232161 its reverse (161232111211), we get a palindrome (273343343372).

The spelling of 112111232161 in words is "one hundred twelve billion, one hundred eleven million, two hundred thirty-two thousand, one hundred sixty-one".