321113012123 has 4 divisors (see below), whose sum is σ = 332185874640. Its totient is φ = 310040149608.

The previous prime is 321113012111. The next prime is 321113012161. The reversal of 321113012123 is 321210311123.

It is a happy number.

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 321113012123 - 2²⁸ = 320844576667 is a prime.

It is a super-3 number, since 3×321113012123³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321113012095 and 321113012104.

It is not an unprimeable number, because it can be changed into a prime (321113012723) 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, 5536431215 + ... + 5536431272.

It is an arithmetic number, because the mean of its divisors is an integer number (83046468660).

Almost surely, 2^321113012123 is an apocalyptic number.

321113012123 is a deficient number, since it is larger than the sum of its proper divisors (11072862517).

321113012123 is a wasteful number, since it uses less digits than its factorization.

321113012123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11072862516.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 321113012123 its reverse (321210311123), we get a palindrome (642323323246).

The spelling of 321113012123 in words is "three hundred twenty-one billion, one hundred thirteen million, twelve thousand, one hundred twenty-three".