112120021127 has 2 divisors, whose sum is σ = 112120021128. Its totient is φ = 112120021126.

The previous prime is 112120021099. The next prime is 112120021147. The reversal of 112120021127 is 721120021211.

It is a happy number.

It is an a-pointer prime, because the next prime (112120021147) can be obtained adding 112120021127 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112120021127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112120021099 and 112120021108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112120021147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56060010563 + 56060010564.

It is an arithmetic number, because the mean of its divisors is an integer number (56060010564).

Almost surely, 2^112120021127 is an apocalyptic number.

112120021127 is a deficient number, since it is larger than the sum of its proper divisors (1).

112120021127 is an equidigital number, since it uses as much as digits as its factorization.

112120021127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 112120021127 its reverse (721120021211), we get a palindrome (833240042338).

The spelling of 112120021127 in words is "one hundred twelve billion, one hundred twenty million, twenty-one thousand, one hundred twenty-seven".