3121233 has 4 divisors (see below), whose sum is σ = 4161648. Its totient is φ = 2080820.

The previous prime is 3121229. The next prime is 3121249. The reversal of 3121233 is 3321213.

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 3121233 - 2² = 3121229 is a prime.

It is an Ulam number.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (3121253) 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, 520203 + ... + 520208.

It is an arithmetic number, because the mean of its divisors is an integer number (1040412).

Almost surely, 2^3121233 is an apocalyptic number.

It is an amenable number.

3121233 is a deficient number, since it is larger than the sum of its proper divisors (1040415).

3121233 is a wasteful number, since it uses less digits than its factorization.

3121233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040414.

The product of its digits is 108, while the sum is 15.

The square root of 3121233 is about 1766.7011631852. The cubic root of 3121233 is about 146.1421178244.

Adding to 3121233 its reverse (3321213), we get a palindrome (6442446).

The spelling of 3121233 in words is "three million, one hundred twenty-one thousand, two hundred thirty-three".