303031012312 has 32 divisors (see below), whose sum is σ = 683528601600. Its totient is φ = 123035147424.

The previous prime is 303031012241. The next prime is 303031012313. The reversal of 303031012312 is 213210130303.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 303031012312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303031012313) 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, 142400728 + ... + 142402855.

It is an arithmetic number, because the mean of its divisors is an integer number (21360268800).

Almost surely, 2^303031012312 is an apocalyptic number.

It is an amenable number.

303031012312 is an abundant number, since it is smaller than the sum of its proper divisors (380497589288).

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

303031012312 is a wasteful number, since it uses less digits than its factorization.

303031012312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284803615 (or 284803611 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 303031012312 its reverse (213210130303), we get a palindrome (516241142615).

The spelling of 303031012312 in words is "three hundred three billion, thirty-one million, twelve thousand, three hundred twelve".