133213320231 has 16 divisors (see below), whose sum is σ = 179745350400. Its totient is φ = 87746550848.

The previous prime is 133213320209. The next prime is 133213320287. The reversal of 133213320231 is 132023312331.

It is a cyclic number.

It is not a de Polignac number, because 133213320231 - 2¹⁸ = 133213058087 is a prime.

It is a super-3 number, since 3×133213320231³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133213320631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182500 + ... + 547478.

It is an arithmetic number, because the mean of its divisors is an integer number (11234084400).

Almost surely, 2^133213320231 is an apocalyptic number.

133213320231 is a deficient number, since it is larger than the sum of its proper divisors (46532030169).

133213320231 is a wasteful number, since it uses less digits than its factorization.

133213320231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366438.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 133213320231 its reverse (132023312331), we get a palindrome (265236632562).

The spelling of 133213320231 in words is "one hundred thirty-three billion, two hundred thirteen million, three hundred twenty thousand, two hundred thirty-one".