321123203011 has 8 divisors (see below), whose sum is σ = 345840440400. Its totient is φ = 296408173152.

The previous prime is 321123203003. The next prime is 321123203017. The reversal of 321123203011 is 110302321123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 321123203011 - 2³ = 321123203003 is a prime.

It is a super-2 number, since 2×321123203011² (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 321123203011.

It is not an unprimeable number, because it can be changed into a prime (321123203017) 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, 243361 + ... + 837538.

It is an arithmetic number, because the mean of its divisors is an integer number (43230055050).

Almost surely, 2^321123203011 is an apocalyptic number.

321123203011 is a deficient number, since it is larger than the sum of its proper divisors (24717237389).

321123203011 is a wasteful number, since it uses less digits than its factorization.

321123203011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103765.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 321123203011 its reverse (110302321123), we get a palindrome (431425524134).

The spelling of 321123203011 in words is "three hundred twenty-one billion, one hundred twenty-three million, two hundred three thousand, eleven".