113428732009 has 2 divisors, whose sum is σ = 113428732010. Its totient is φ = 113428732008.

The previous prime is 113428732003. The next prime is 113428732051. The reversal of 113428732009 is 900237824311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112491147609 + 937584400 = 335397^2 + 30620^2 .

It is a cyclic number.

It is not a de Polignac number, because 113428732009 - 2³¹ = 111281248361 is a prime.

It is not a weakly prime, because it can be changed into another prime (113428732003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56714366004 + 56714366005.

It is an arithmetic number, because the mean of its divisors is an integer number (56714366005).

Almost surely, 2^113428732009 is an apocalyptic number.

It is an amenable number.

113428732009 is a deficient number, since it is larger than the sum of its proper divisors (1).

113428732009 is an equidigital number, since it uses as much as digits as its factorization.

113428732009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 113428732009 in words is "one hundred thirteen billion, four hundred twenty-eight million, seven hundred thirty-two thousand, nine".