303031121212 has 24 divisors (see below), whose sum is σ = 537205914000. Its totient is φ = 149547202176.

The previous prime is 303031121191. The next prime is 303031121213. The reversal of 303031121212 is 212121130303.

It is a self number, because there is not a number n which added to its sum of digits gives 303031121212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303031121213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86787 + ... + 783322.

It is an arithmetic number, because the mean of its divisors is an integer number (22383579750).

Almost surely, 2^303031121212 is an apocalyptic number.

It is an amenable number.

303031121212 is a deficient number, since it is larger than the sum of its proper divisors (234174792788).

303031121212 is a wasteful number, since it uses less digits than its factorization.

303031121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871245 (or 871243 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 303031121212 its reverse (212121130303), we get a palindrome (515152251515).

Subtracting from 303031121212 its reverse (212121130303), we obtain a palindrome (90909990909).

The spelling of 303031121212 in words is "three hundred three billion, thirty-one million, one hundred twenty-one thousand, two hundred twelve".