12321099011 has 16 divisors (see below), whose sum is σ = 13890987264. Its totient is φ = 10843313184.

The previous prime is 12321098989. The next prime is 12321099013. The reversal of 12321099011 is 11099012321.

It is a cyclic number.

It is not a de Polignac number, because 12321099011 - 2⁶ = 12321098947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12321099013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24680 + ... + 158906.

It is an arithmetic number, because the mean of its divisors is an integer number (868186704).

Almost surely, 2^12321099011 is an apocalyptic number.

12321099011 is a deficient number, since it is larger than the sum of its proper divisors (1569888253).

12321099011 is a wasteful number, since it uses less digits than its factorization.

12321099011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134570.

The product of its (nonzero) digits is 972, while the sum is 29.

The spelling of 12321099011 in words is "twelve billion, three hundred twenty-one million, ninety-nine thousand, eleven".