33313131212 has 6 divisors (see below), whose sum is σ = 58297979628. Its totient is φ = 16656565604.

The previous prime is 33313131211. The next prime is 33313131239. The reversal of 33313131212 is 21213131333.

It is a super-2 number, since 2×33313131212² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33313131211) 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 as a sum of consecutive naturals, namely, 4164141398 + ... + 4164141405.

It is an arithmetic number, because the mean of its divisors is an integer number (9716329938).

Almost surely, 2^33313131212 is an apocalyptic number.

It is an amenable number.

33313131212 is a deficient number, since it is larger than the sum of its proper divisors (24984848416).

33313131212 is a wasteful number, since it uses less digits than its factorization.

33313131212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8328282807 (or 8328282805 counting only the distinct ones).

The product of its digits is 972, while the sum is 23.

Adding to 33313131212 its reverse (21213131333), we get a palindrome (54526262545).

The spelling of 33313131212 in words is "thirty-three billion, three hundred thirteen million, one hundred thirty-one thousand, two hundred twelve".