3123210123212 has 24 divisors (see below), whose sum is σ = 5642662502400. Its totient is φ = 1511033953680.

The previous prime is 3123210123193. The next prime is 3123210123221. The reversal of 3123210123212 is 2123210123213.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 681068 + ... + 2590419.

It is an arithmetic number, because the mean of its divisors is an integer number (235110937600).

Almost surely, 2^{3123210123212} is an apocalyptic number.

It is an amenable number.

3123210123212 is a deficient number, since it is larger than the sum of its proper divisors (2519452379188).

3123210123212 is a wasteful number, since it uses less digits than its factorization.

3123210123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3279221 (or 3279219 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 3123210123212 its reverse (2123210123213), we get a palindrome (5246420246425).

Subtracting from 3123210123212 its reverse (2123210123213), we obtain a palindrome (999999999999).

The spelling of 3123210123212 in words is "three trillion, one hundred twenty-three billion, two hundred ten million, one hundred twenty-three thousand, two hundred twelve".