133333000121 has 4 divisors (see below), whose sum is σ = 136169872512. Its totient is φ = 130496127732.

The previous prime is 133333000117. The next prime is 133333000123. The reversal of 133333000121 is 121000333331.

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, and also an emirpimes, since its reverse is a distinct semiprime: 121000333331 = 79 ⋅1531649789.

It is not a de Polignac number, because 133333000121 - 2² = 133333000117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133333000093 and 133333000102.

It is not an unprimeable number, because it can be changed into a prime (133333000123) 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, 1418436125 + ... + 1418436218.

It is an arithmetic number, because the mean of its divisors is an integer number (34042468128).

Almost surely, 2^133333000121 is an apocalyptic number.

It is an amenable number.

133333000121 is a deficient number, since it is larger than the sum of its proper divisors (2836872391).

133333000121 is an equidigital number, since it uses as much as digits as its factorization.

133333000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2836872390.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 133333000121 its reverse (121000333331), we get a palindrome (254333333452).

The spelling of 133333000121 in words is "one hundred thirty-three billion, three hundred thirty-three million, one hundred twenty-one", and thus it is an aban number.