323121111011 has 4 divisors (see below), whose sum is σ = 337169854992. Its totient is φ = 309072367032.

The previous prime is 323121111007. The next prime is 323121111029. The reversal of 323121111011 is 110111121323.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 323121111011 - 2² = 323121111007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (323121111041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7024371956 + ... + 7024372001.

It is an arithmetic number, because the mean of its divisors is an integer number (84292463748).

Almost surely, 2^323121111011 is an apocalyptic number.

323121111011 is a deficient number, since it is larger than the sum of its proper divisors (14048743981).

323121111011 is a wasteful number, since it uses less digits than its factorization.

323121111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14048743980.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 323121111011 its reverse (110111121323), we get a palindrome (433232232334).

The spelling of 323121111011 in words is "three hundred twenty-three billion, one hundred twenty-one million, one hundred eleven thousand, eleven".