11650623311 has 4 divisors (see below), whose sum is σ = 12335954112. Its totient is φ = 10965292512.

The previous prime is 11650623301. The next prime is 11650623359. The reversal of 11650623311 is 11332605611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11650623311 - 2²² = 11646429007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11650623301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342665375 + ... + 342665408.

It is an arithmetic number, because the mean of its divisors is an integer number (3083988528).

Almost surely, 2^11650623311 is an apocalyptic number.

11650623311 is a deficient number, since it is larger than the sum of its proper divisors (685330801).

11650623311 is an equidigital number, since it uses as much as digits as its factorization.

11650623311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685330800.

The product of its (nonzero) digits is 3240, while the sum is 29.

The spelling of 11650623311 in words is "eleven billion, six hundred fifty million, six hundred twenty-three thousand, three hundred eleven".