115863313513 has 2 divisors, whose sum is σ = 115863313514. Its totient is φ = 115863313512.

The previous prime is 115863313507. The next prime is 115863313543. The reversal of 115863313513 is 315313368511.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104689132249 + 11174181264 = 323557^2 + 105708^2 .

It is a cyclic number.

It is not a de Polignac number, because 115863313513 - 2⁵ = 115863313481 is a prime.

It is not a weakly prime, because it can be changed into another prime (115863313543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57931656756 + 57931656757.

It is an arithmetic number, because the mean of its divisors is an integer number (57931656757).

Almost surely, 2^115863313513 is an apocalyptic number.

It is an amenable number.

115863313513 is a deficient number, since it is larger than the sum of its proper divisors (1).

115863313513 is an equidigital number, since it uses as much as digits as its factorization.

115863313513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 40.

The spelling of 115863313513 in words is "one hundred fifteen billion, eight hundred sixty-three million, three hundred thirteen thousand, five hundred thirteen".