133212131213 has 32 divisors (see below), whose sum is σ = 158827806720. Its totient is φ = 109326127680.

The previous prime is 133212131159. The next prime is 133212131233. The reversal of 133212131213 is 312131212331.

It is not a de Polignac number, because 133212131213 - 2⁶ = 133212131149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133212131233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10273028 + ... + 10285986.

It is an arithmetic number, because the mean of its divisors is an integer number (4963368960).

Almost surely, 2^133212131213 is an apocalyptic number.

It is an amenable number.

133212131213 is a deficient number, since it is larger than the sum of its proper divisors (25615675507).

133212131213 is a wasteful number, since it uses less digits than its factorization.

133212131213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13497.

The product of its digits is 648, while the sum is 23.

Adding to 133212131213 its reverse (312131212331), we get a palindrome (445343343544).

The spelling of 133212131213 in words is "one hundred thirty-three billion, two hundred twelve million, one hundred thirty-one thousand, two hundred thirteen".