321111233103 has 32 divisors (see below), whose sum is σ = 450086515200. Its totient is φ = 203245511040.

The previous prime is 321111233099. The next prime is 321111233119. The reversal of 321111233103 is 301332111123.

It is a happy number.

It is not a de Polignac number, because 321111233103 - 2² = 321111233099 is a prime.

It is a super-2 number, since 2×321111233103² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 321111233103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321111233153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15236193 + ... + 15257253.

It is an arithmetic number, because the mean of its divisors is an integer number (14065203600).

Almost surely, 2^321111233103 is an apocalyptic number.

321111233103 is a deficient number, since it is larger than the sum of its proper divisors (128975282097).

321111233103 is a wasteful number, since it uses less digits than its factorization.

321111233103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22719.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 321111233103 its reverse (301332111123), we get a palindrome (622443344226).

The spelling of 321111233103 in words is "three hundred twenty-one billion, one hundred eleven million, two hundred thirty-three thousand, one hundred three".