133212131321 has 8 divisors (see below), whose sum is σ = 134170788000. Its totient is φ = 132256242432.

The previous prime is 133212131303. The next prime is 133212131357. The reversal of 133212131321 is 123131212331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133212131321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133212181321) 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, 595295 + ... + 787908.

It is an arithmetic number, because the mean of its divisors is an integer number (16771348500).

Almost surely, 2^133212131321 is an apocalyptic number.

It is an amenable number.

133212131321 is a deficient number, since it is larger than the sum of its proper divisors (958656679).

133212131321 is a wasteful number, since it uses less digits than its factorization.

133212131321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383895.

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

Adding to 133212131321 its reverse (123131212331), we get a palindrome (256343343652).

The spelling of 133212131321 in words is "one hundred thirty-three billion, two hundred twelve million, one hundred thirty-one thousand, three hundred twenty-one".