113531318199109 has 2 divisors, whose sum is σ = 113531318199110. Its totient is φ = 113531318199108.

The previous prime is 113531318199083. The next prime is 113531318199133. The reversal of 113531318199109 is 901991813135311.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103091084810884 + 10440233388225 = 10153378^2 + 3231135^2 .

It is a cyclic number.

It is not a de Polignac number, because 113531318199109 - 2¹⁹ = 113531317674821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113531318199109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113531318199209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56765659099554 + 56765659099555.

It is an arithmetic number, because the mean of its divisors is an integer number (56765659099555).

Almost surely, 2^{113531318199109} is an apocalyptic number.

It is an amenable number.

113531318199109 is a deficient number, since it is larger than the sum of its proper divisors (1).

113531318199109 is an equidigital number, since it uses as much as digits as its factorization.

113531318199109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 787320, while the sum is 55.

The spelling of 113531318199109 in words is "one hundred thirteen trillion, five hundred thirty-one billion, three hundred eighteen million, one hundred ninety-nine thousand, one hundred nine".