3123213321211 has 4 divisors (see below), whose sum is σ = 3135656402424. Its totient is φ = 3110770240000.

The previous prime is 3123213321181. The next prime is 3123213321223. The reversal of 3123213321211 is 1121233123213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3123213321211 is a prime.

It is a super-2 number, since 2×3123213321211² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3123213321311) 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, 6221540230 + ... + 6221540731.

It is an arithmetic number, because the mean of its divisors is an integer number (783914100606).

Almost surely, 2^{3123213321211} is an apocalyptic number.

3123213321211 is a deficient number, since it is larger than the sum of its proper divisors (12443081213).

3123213321211 is a wasteful number, since it uses less digits than its factorization.

3123213321211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12443081212.

The product of its digits is 1296, while the sum is 25.

Adding to 3123213321211 its reverse (1121233123213), we get a palindrome (4244446444424).

The spelling of 3123213321211 in words is "three trillion, one hundred twenty-three billion, two hundred thirteen million, three hundred twenty-one thousand, two hundred eleven".