115511713013 has 2 divisors, whose sum is σ = 115511713014. Its totient is φ = 115511713012.

The previous prime is 115511712983. The next prime is 115511713019. The reversal of 115511713013 is 310317115511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61119211729 + 54392501284 = 247223^2 + 233222^2 .

It is a cyclic number.

It is not a de Polignac number, because 115511713013 - 2¹⁶ = 115511647477 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 (115511713019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57755856506 + 57755856507.

It is an arithmetic number, because the mean of its divisors is an integer number (57755856507).

Almost surely, 2^115511713013 is an apocalyptic number.

It is an amenable number.

115511713013 is a deficient number, since it is larger than the sum of its proper divisors (1).

115511713013 is an equidigital number, since it uses as much as digits as its factorization.

115511713013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1575, while the sum is 29.

Adding to 115511713013 its reverse (310317115511), we get a palindrome (425828828524).

The spelling of 115511713013 in words is "one hundred fifteen billion, five hundred eleven million, seven hundred thirteen thousand, thirteen".