11501688643223 has 2 divisors, whose sum is σ = 11501688643224. Its totient is φ = 11501688643222.

The previous prime is 11501688643219. The next prime is 11501688643241. The reversal of 11501688643223 is 32234688610511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11501688643223 - 2² = 11501688643219 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11501688640223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5750844321611 + 5750844321612.

It is an arithmetic number, because the mean of its divisors is an integer number (5750844321612).

Almost surely, 2^{11501688643223} is an apocalyptic number.

11501688643223 is a deficient number, since it is larger than the sum of its proper divisors (1).

11501688643223 is an equidigital number, since it uses as much as digits as its factorization.

11501688643223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1658880, while the sum is 50.

The spelling of 11501688643223 in words is "eleven trillion, five hundred one billion, six hundred eighty-eight million, six hundred forty-three thousand, two hundred twenty-three".