113246087821 has 2 divisors, whose sum is σ = 113246087822. Its totient is φ = 113246087820.

The previous prime is 113246087749. The next prime is 113246087861. The reversal of 113246087821 is 128780642311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64205985321 + 49040102500 = 253389^2 + 221450^2 .

It is a cyclic number.

It is not a de Polignac number, because 113246087821 - 2⁹ = 113246087309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113246087861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56623043910 + 56623043911.

It is an arithmetic number, because the mean of its divisors is an integer number (56623043911).

Almost surely, 2^113246087821 is an apocalyptic number.

It is an amenable number.

113246087821 is a deficient number, since it is larger than the sum of its proper divisors (1).

113246087821 is an equidigital number, since it uses as much as digits as its factorization.

113246087821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129024, while the sum is 43.

The spelling of 113246087821 in words is "one hundred thirteen billion, two hundred forty-six million, eighty-seven thousand, eight hundred twenty-one".