3121032020212 has 48 divisors (see below), whose sum is σ = 5859254983680. Its totient is φ = 1449440289792.

The previous prime is 3121032020177. The next prime is 3121032020219. The reversal of 3121032020212 is 2120202301213.

It is a self number, because there is not a number n which added to its sum of digits gives 3121032020212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121032020219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2672173 + ... + 3658219.

It is an arithmetic number, because the mean of its divisors is an integer number (122067812160).

Almost surely, 2^{3121032020212} is an apocalyptic number.

It is an amenable number.

3121032020212 is a deficient number, since it is larger than the sum of its proper divisors (2738222963468).

3121032020212 is a wasteful number, since it uses less digits than its factorization.

3121032020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986680 (or 986678 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 3121032020212 its reverse (2120202301213), we get a palindrome (5241234321425).

The spelling of 3121032020212 in words is "three trillion, one hundred twenty-one billion, thirty-two million, twenty thousand, two hundred twelve".