3123213213212 has 12 divisors (see below), whose sum is σ = 5465636022840. Its totient is φ = 1561602920976.

The previous prime is 3123213213203. The next prime is 3123213213223. The reversal of 3123213213212 is 2123123123213.

3123213213212 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, 2049839 + ... + 3232377.

It is an arithmetic number, because the mean of its divisors is an integer number (455469668570).

Almost surely, 2^{3123213213212} is an apocalyptic number.

It is an amenable number.

3123213213212 is a deficient number, since it is larger than the sum of its proper divisors (2342422809628).

3123213213212 is a wasteful number, since it uses less digits than its factorization.

3123213213212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842820 (or 1842818 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

Adding to 3123213213212 its reverse (2123123123213), we get a palindrome (5246336336425).

The spelling of 3123213213212 in words is "three trillion, one hundred twenty-three billion, two hundred thirteen million, two hundred thirteen thousand, two hundred twelve".