112625331821 has 2 divisors, whose sum is σ = 112625331822. Its totient is φ = 112625331820.

The previous prime is 112625331787. The next prime is 112625331877. The reversal of 112625331821 is 128133526211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78016310596 + 34609021225 = 279314^2 + 186035^2 .

It is an emirp because it is prime and its reverse (128133526211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112625331821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112625331881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56312665910 + 56312665911.

It is an arithmetic number, because the mean of its divisors is an integer number (56312665911).

Almost surely, 2^112625331821 is an apocalyptic number.

It is an amenable number.

112625331821 is a deficient number, since it is larger than the sum of its proper divisors (1).

112625331821 is an equidigital number, since it uses as much as digits as its factorization.

112625331821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 35.

The spelling of 112625331821 in words is "one hundred twelve billion, six hundred twenty-five million, three hundred thirty-one thousand, eight hundred twenty-one".