3121233212 has 12 divisors (see below), whose sum is σ = 5464971456. Its totient is φ = 1559812800.

The previous prime is 3121233209. The next prime is 3121233223. The reversal of 3121233212 is 2123321213.

3121233212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192173 + ... + 207780.

It is an arithmetic number, because the mean of its divisors is an integer number (455414288).

Almost surely, 2^3121233212 is an apocalyptic number.

It is an amenable number.

3121233212 is a deficient number, since it is larger than the sum of its proper divisors (2343738244).

3121233212 is a wasteful number, since it uses less digits than its factorization.

3121233212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401908 (or 401906 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 3121233212 is about 55867.9981026705. The cubic root of 3121233212 is about 1461.4212113315.

Adding to 3121233212 its reverse (2123321213), we get a palindrome (5244554425).

The spelling of 3121233212 in words is "three billion, one hundred twenty-one million, two hundred thirty-three thousand, two hundred twelve".