321236490011 has 4 divisors (see below), whose sum is σ = 321253125312. Its totient is φ = 321219854712.

The previous prime is 321236489941. The next prime is 321236490017. The reversal of 321236490011 is 110094632123.

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 321236490011 - 2¹⁸ = 321236227867 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 321236490011.

It is not an unprimeable number, because it can be changed into a prime (321236490017) 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, 8288651 + ... + 8327316.

It is an arithmetic number, because the mean of its divisors is an integer number (80313281328).

Almost surely, 2^321236490011 is an apocalyptic number.

321236490011 is a deficient number, since it is larger than the sum of its proper divisors (16635301).

321236490011 is a wasteful number, since it uses less digits than its factorization.

321236490011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16635300.

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 321236490011 in words is "three hundred twenty-one billion, two hundred thirty-six million, four hundred ninety thousand, eleven".