12101323065 has 32 divisors (see below), whose sum is σ = 20857374720. Its totient is φ = 5955899136.

The previous prime is 12101323057. The next prime is 12101323081. The reversal of 12101323065 is 56032310121.

It is not a de Polignac number, because 12101323065 - 2³ = 12101323057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 963496 + ... + 975974.

It is an arithmetic number, because the mean of its divisors is an integer number (651792960).

Almost surely, 2^12101323065 is an apocalyptic number.

12101323065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12101323065 is a deficient number, since it is larger than the sum of its proper divisors (8756051655).

12101323065 is a wasteful number, since it uses less digits than its factorization.

12101323065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17473.

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 12101323065 its reverse (56032310121), we get a palindrome (68133633186).

The spelling of 12101323065 in words is "twelve billion, one hundred one million, three hundred twenty-three thousand, sixty-five".