112111302521 has 2 divisors, whose sum is σ = 112111302522. Its totient is φ = 112111302520.

The previous prime is 112111302497. The next prime is 112111302547. The reversal of 112111302521 is 125203111211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69413279296 + 42698023225 = 263464^2 + 206635^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112111302521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112111302493 and 112111302502.

It is not a weakly prime, because it can be changed into another prime (112111332521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56055651260 + 56055651261.

It is an arithmetic number, because the mean of its divisors is an integer number (56055651261).

Almost surely, 2^112111302521 is an apocalyptic number.

It is an amenable number.

112111302521 is a deficient number, since it is larger than the sum of its proper divisors (1).

112111302521 is an equidigital number, since it uses as much as digits as its factorization.

112111302521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 20.

Adding to 112111302521 its reverse (125203111211), we get a palindrome (237314413732).

The spelling of 112111302521 in words is "one hundred twelve billion, one hundred eleven million, three hundred two thousand, five hundred twenty-one".