11928122723 has 8 divisors (see below), whose sum is σ = 13060517376. Its totient is φ = 10803731400.

The previous prime is 11928122719. The next prime is 11928122819. The reversal of 11928122723 is 32722182911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11928122723 - 2² = 11928122719 is a prime.

It is a super-2 number, since 2×11928122723² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11928122623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1997711 + ... + 2003672.

It is an arithmetic number, because the mean of its divisors is an integer number (1632564672).

Almost surely, 2^11928122723 is an apocalyptic number.

11928122723 is a deficient number, since it is larger than the sum of its proper divisors (1132394653).

11928122723 is a wasteful number, since it uses less digits than its factorization.

11928122723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4001665.

The product of its digits is 24192, while the sum is 38.

The spelling of 11928122723 in words is "eleven billion, nine hundred twenty-eight million, one hundred twenty-two thousand, seven hundred twenty-three".