303123123212 has 72 divisors (see below), whose sum is σ = 669865644000. Its totient is φ = 119916748224.

The previous prime is 303123123211. The next prime is 303123123227. The reversal of 303123123212 is 212321321303.

It is not an unprimeable number, because it can be changed into a prime (303123123211) 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 23 ways as a sum of consecutive naturals, for example, 421787 + ... + 885522.

It is an arithmetic number, because the mean of its divisors is an integer number (9303689500).

Almost surely, 2^303123123212 is an apocalyptic number.

It is an amenable number.

303123123212 is an abundant number, since it is smaller than the sum of its proper divisors (366742520788).

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

303123123212 is a wasteful number, since it uses less digits than its factorization.

303123123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307360 (or 1307331 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 303123123212 its reverse (212321321303), we get a palindrome (515444444515).

The spelling of 303123123212 in words is "three hundred three billion, one hundred twenty-three million, one hundred twenty-three thousand, two hundred twelve".