3112123321 has 4 divisors (see below), whose sum is σ = 3113060944. Its totient is φ = 3111185700.

The previous prime is 3112123319. The next prime is 3112123331. The reversal of 3112123321 is 1233212113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3112123321 - 2¹ = 3112123319 is a prime.

It is a super-2 number, since 2×3112123321² = 19370623130224138082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3112123331) 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, 463815 + ... + 470476.

It is an arithmetic number, because the mean of its divisors is an integer number (778265236).

Almost surely, 2^3112123321 is an apocalyptic number.

It is an amenable number.

3112123321 is a deficient number, since it is larger than the sum of its proper divisors (937623).

3112123321 is an equidigital number, since it uses as much as digits as its factorization.

3112123321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937622.

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

The square root of 3112123321 is about 55786.4080309891. The cubic root of 3112123321 is about 1459.9980172926.

Adding to 3112123321 its reverse (1233212113), we get a palindrome (4345335434).

The spelling of 3112123321 in words is "three billion, one hundred twelve million, one hundred twenty-three thousand, three hundred twenty-one".