133212101321 has 4 divisors (see below), whose sum is σ = 143459186052. Its totient is φ = 122965016592.

The previous prime is 133212101311. The next prime is 133212101327. The reversal of 133212101321 is 123101212331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123101212331 = 787 ⋅156418313.

It can be written as a sum of positive squares in 2 ways, for example, as 5451607225 + 127760494096 = 73835^2 + 357436^2 .

It is a cyclic number.

It is not a de Polignac number, because 133212101321 - 2²² = 133207907017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133212101293 and 133212101302.

It is not an unprimeable number, because it can be changed into a prime (133212101327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5123542346 + ... + 5123542371.

It is an arithmetic number, because the mean of its divisors is an integer number (35864796513).

Almost surely, 2^133212101321 is an apocalyptic number.

It is an amenable number.

133212101321 is a deficient number, since it is larger than the sum of its proper divisors (10247084731).

133212101321 is a wasteful number, since it uses less digits than its factorization.

133212101321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10247084730.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 133212101321 its reverse (123101212331), we get a palindrome (256313313652).

The spelling of 133212101321 in words is "one hundred thirty-three billion, two hundred twelve million, one hundred one thousand, three hundred twenty-one".