113256512689 has 2 divisors, whose sum is σ = 113256512690. Its totient is φ = 113256512688.

The previous prime is 113256512687. The next prime is 113256512713. The reversal of 113256512689 is 986215652311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85634072689 + 27622440000 = 292633^2 + 166200^2 .

It is a cyclic number.

It is not a de Polignac number, because 113256512689 - 2¹ = 113256512687 is a prime.

Together with 113256512687, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (113256512687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56628256344 + 56628256345.

It is an arithmetic number, because the mean of its divisors is an integer number (56628256345).

Almost surely, 2^113256512689 is an apocalyptic number.

It is an amenable number.

113256512689 is a deficient number, since it is larger than the sum of its proper divisors (1).

113256512689 is an equidigital number, since it uses as much as digits as its factorization.

113256512689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 777600, while the sum is 49.

The spelling of 113256512689 in words is "one hundred thirteen billion, two hundred fifty-six million, five hundred twelve thousand, six hundred eighty-nine".