133321311012 has 48 divisors (see below), whose sum is σ = 329796895232. Its totient is φ = 41844522240.

The previous prime is 133321311007. The next prime is 133321311061. The reversal of 133321311012 is 210113123331.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 133321311012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4829353 + ... + 4856880.

Almost surely, 2^133321311012 is an apocalyptic number.

133321311012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133321311012 is an abundant number, since it is smaller than the sum of its proper divisors (196475584220).

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

133321311012 is a wasteful number, since it uses less digits than its factorization.

133321311012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9686308 (or 9686306 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 133321311012 its reverse (210113123331), we get a palindrome (343434434343).

The spelling of 133321311012 in words is "one hundred thirty-three billion, three hundred twenty-one million, three hundred eleven thousand, twelve".