12321012011 has 8 divisors (see below), whose sum is σ = 15361261824. Its totient is φ = 9600788520.

The previous prime is 12321011999. The next prime is 12321012047. The reversal of 12321012011 is 11021012321.

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

It is a cyclic number.

It is not a de Polignac number, because 12321012011 - 2¹⁸ = 12320749867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12321012511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80006495 + ... + 80006648.

It is an arithmetic number, because the mean of its divisors is an integer number (1920157728).

Almost surely, 2^12321012011 is an apocalyptic number.

12321012011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12321012011 is a deficient number, since it is larger than the sum of its proper divisors (3040249813).

12321012011 is a wasteful number, since it uses less digits than its factorization.

12321012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160013161.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12321012011 its reverse (11021012321), we get a palindrome (23342024332).

The spelling of 12321012011 in words is "twelve billion, three hundred twenty-one million, twelve thousand, eleven".