12232123011 has 32 divisors (see below), whose sum is σ = 18559735040. Its totient is φ = 7957958400.

The previous prime is 12232122943. The next prime is 12232123019. The reversal of 12232123011 is 11032123221.

It is not a de Polignac number, because 12232123011 - 2¹¹ = 12232120963 is a prime.

It is a super-2 number, since 2×12232123011² (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 (12232123019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1494771 + ... + 1502931.

It is an arithmetic number, because the mean of its divisors is an integer number (579991720).

Almost surely, 2^12232123011 is an apocalyptic number.

12232123011 is a deficient number, since it is larger than the sum of its proper divisors (6327612029).

12232123011 is a wasteful number, since it uses less digits than its factorization.

12232123011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9504 (or 9498 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12232123011 its reverse (11032123221), we get a palindrome (23264246232).

The spelling of 12232123011 in words is "twelve billion, two hundred thirty-two million, one hundred twenty-three thousand, eleven".