321311012011 has 8 divisors (see below), whose sum is σ = 350557728048. Its totient is φ = 292070400000.

The previous prime is 321311011993. The next prime is 321311012021. The reversal of 321311012011 is 110210113123.

It is a happy number.

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 321311012011 - 2¹⁹ = 321310487723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (321311012021) 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, 1415590 + ... + 1626811.

It is an arithmetic number, because the mean of its divisors is an integer number (43819716006).

Almost surely, 2^321311012011 is an apocalyptic number.

321311012011 is a deficient number, since it is larger than the sum of its proper divisors (29246716037).

321311012011 is a wasteful number, since it uses less digits than its factorization.

321311012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3052013.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 321311012011 its reverse (110210113123), we get a palindrome (431521125134).

The spelling of 321311012011 in words is "three hundred twenty-one billion, three hundred eleven million, twelve thousand, eleven".