115404520013 has 2 divisors, whose sum is σ = 115404520014. Its totient is φ = 115404520012.

The previous prime is 115404519959. The next prime is 115404520051. The reversal of 115404520013 is 310025404511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107084708644 + 8319811369 = 327238^2 + 91213^2 .

It is a cyclic number.

It is not a de Polignac number, because 115404520013 - 2¹² = 115404515917 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115404520073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57702260006 + 57702260007.

It is an arithmetic number, because the mean of its divisors is an integer number (57702260007).

Almost surely, 2^115404520013 is an apocalyptic number.

It is an amenable number.

115404520013 is a deficient number, since it is larger than the sum of its proper divisors (1).

115404520013 is an equidigital number, since it uses as much as digits as its factorization.

115404520013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 115404520013 its reverse (310025404511), we get a palindrome (425429924524).

The spelling of 115404520013 in words is "one hundred fifteen billion, four hundred four million, five hundred twenty thousand, thirteen".