3121423244212 has 72 divisors (see below), whose sum is σ = 6862183816320. Its totient is φ = 1231408704960.

The previous prime is 3121423244167. The next prime is 3121423244227. The reversal of 3121423244212 is 2124423241213.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 791464 + ... + 2620927.

It is an arithmetic number, because the mean of its divisors is an integer number (95308108560).

Almost surely, 2^{3121423244212} is an apocalyptic number.

It is an amenable number.

3121423244212 is an abundant number, since it is smaller than the sum of its proper divisors (3740760572108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3121423244212 is a wasteful number, since it uses less digits than its factorization.

3121423244212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3412781 (or 3412772 counting only the distinct ones).

The product of its digits is 18432, while the sum is 31.

Adding to 3121423244212 its reverse (2124423241213), we get a palindrome (5245846485425).

The spelling of 3121423244212 in words is "three trillion, one hundred twenty-one billion, four hundred twenty-three million, two hundred forty-four thousand, two hundred twelve".