321211112123 has 4 divisors (see below), whose sum is σ = 350412122328. Its totient is φ = 292010101920.

The previous prime is 321211112119. The next prime is 321211112143.

321211112123 is nontrivially palindromic in base 10.

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 321211112123 - 2² = 321211112119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321211112095 and 321211112104.

It is not an unprimeable number, because it can be changed into a prime (321211112143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14600505086 + ... + 14600505107.

It is an arithmetic number, because the mean of its divisors is an integer number (87603030582).

Almost surely, 2^321211112123 is an apocalyptic number.

321211112123 is a deficient number, since it is larger than the sum of its proper divisors (29201010205).

321211112123 is a wasteful number, since it uses less digits than its factorization.

321211112123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29201010204.

The product of its digits is 144, while the sum is 20.

It can be divided in two parts, 321211 and 112123, that added together give a palindrome (433334).

The spelling of 321211112123 in words is "three hundred twenty-one billion, two hundred eleven million, one hundred twelve thousand, one hundred twenty-three".