133311320212 has 36 divisors (see below), whose sum is σ = 271444135284. Its totient is φ = 57120712320.

The previous prime is 133311320189. The next prime is 133311320251. The reversal of 133311320212 is 212023113331.

It can be written as a sum of positive squares in 2 ways, for example, as 60650883076 + 72660437136 = 246274^2 + 269556^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 835512 + ... + 982192.

It is an arithmetic number, because the mean of its divisors is an integer number (7540114869).

Almost surely, 2^133311320212 is an apocalyptic number.

It is an amenable number.

133311320212 is an abundant number, since it is smaller than the sum of its proper divisors (138132815072).

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

133311320212 is a wasteful number, since it uses less digits than its factorization.

133311320212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151336 (or 151327 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 133311320212 its reverse (212023113331), we get a palindrome (345334433543).

The spelling of 133311320212 in words is "one hundred thirty-three billion, three hundred eleven million, three hundred twenty thousand, two hundred twelve".