321223010111 has 16 divisors (see below), whose sum is σ = 344821489344. Its totient is φ = 298148143104.

The previous prime is 321223010099. The next prime is 321223010131. The reversal of 321223010111 is 111010322123.

It is a cyclic number.

It is not a de Polignac number, because 321223010111 - 2²² = 321218815807 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

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 321223010111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321223010131) 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, 16101935 + ... + 16121871.

It is an arithmetic number, because the mean of its divisors is an integer number (21551343084).

Almost surely, 2^321223010111 is an apocalyptic number.

321223010111 is a deficient number, since it is larger than the sum of its proper divisors (23598479233).

321223010111 is a wasteful number, since it uses less digits than its factorization.

321223010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33010.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 321223010111 its reverse (111010322123), we get a palindrome (432233332234).

The spelling of 321223010111 in words is "three hundred twenty-one billion, two hundred twenty-three million, ten thousand, one hundred eleven".