390123120212 has 24 divisors (see below), whose sum is σ = 826143079104. Its totient is φ = 157360586112.

The previous prime is 390123120187. The next prime is 390123120241. The reversal of 390123120212 is 212021321093.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409792718 + ... + 409793669.

It is an arithmetic number, because the mean of its divisors is an integer number (34422628296).

Almost surely, 2^390123120212 is an apocalyptic number.

It is an amenable number.

390123120212 is an abundant number, since it is smaller than the sum of its proper divisors (436019958892).

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

390123120212 is a wasteful number, since it uses less digits than its factorization.

390123120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819586415 (or 819586413 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 390123120212 in words is "three hundred ninety billion, one hundred twenty-three million, one hundred twenty thousand, two hundred twelve".