133133213121 has 4 divisors (see below), whose sum is σ = 177510950832. Its totient is φ = 88755475412.

The previous prime is 133133213107. The next prime is 133133213141. The reversal of 133133213121 is 121312331331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 133133213121 - 2⁵ = 133133213089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133133213091 and 133133213100.

It is not an unprimeable number, because it can be changed into a prime (133133213141) 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, 22188868851 + ... + 22188868856.

It is an arithmetic number, because the mean of its divisors is an integer number (44377737708).

Almost surely, 2^133133213121 is an apocalyptic number.

It is an amenable number.

133133213121 is a deficient number, since it is larger than the sum of its proper divisors (44377737711).

133133213121 is an equidigital number, since it uses as much as digits as its factorization.

133133213121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44377737710.

The product of its digits is 972, while the sum is 24.

Adding to 133133213121 its reverse (121312331331), we get a palindrome (254445544452).

The spelling of 133133213121 in words is "one hundred thirty-three billion, one hundred thirty-three million, two hundred thirteen thousand, one hundred twenty-one".