11923563145 has 16 divisors (see below), whose sum is σ = 16219909440. Its totient is φ = 8341665984.

The previous prime is 11923563109. The next prime is 11923563167. The reversal of 11923563145 is 54136532911.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11923563145 - 2⁷ = 11923563017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11923563098 and 11923563107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4826119 + ... + 4828588.

It is an arithmetic number, because the mean of its divisors is an integer number (1013744340).

Almost surely, 2^11923563145 is an apocalyptic number.

It is an amenable number.

11923563145 is a deficient number, since it is larger than the sum of its proper divisors (4296346295).

11923563145 is a wasteful number, since it uses less digits than its factorization.

11923563145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9654744.

The product of its digits is 97200, while the sum is 40.

The spelling of 11923563145 in words is "eleven billion, nine hundred twenty-three million, five hundred sixty-three thousand, one hundred forty-five".