11500505615101 has 2 divisors, whose sum is σ = 11500505615102. Its totient is φ = 11500505615100.

The previous prime is 11500505615051. The next prime is 11500505615119. The reversal of 11500505615101 is 10151650500511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8404925765625 + 3095579849476 = 2899125^2 + 1759426^2 .

It is a cyclic number.

It is not a de Polignac number, because 11500505615101 - 2²¹ = 11500503517949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11500505615171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5750252807550 + 5750252807551.

It is an arithmetic number, because the mean of its divisors is an integer number (5750252807551).

Almost surely, 2^{11500505615101} is an apocalyptic number.

It is an amenable number.

11500505615101 is a deficient number, since it is larger than the sum of its proper divisors (1).

11500505615101 is an equidigital number, since it uses as much as digits as its factorization.

11500505615101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3750, while the sum is 31.

The spelling of 11500505615101 in words is "eleven trillion, five hundred billion, five hundred five million, six hundred fifteen thousand, one hundred one".