133102121 has 4 divisors (see below), whose sum is σ = 133983744. Its totient is φ = 132220500.

The previous prime is 133102117. The next prime is 133102169. The reversal of 133102121 is 121201331.

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 133102121 - 2² = 133102117 is a prime.

It is a super-2 number, since 2×133102121² = 35432349229397282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133102096 and 133102105.

It is not an unprimeable number, because it can be changed into a prime (133102181) 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, 440585 + ... + 440886.

It is an arithmetic number, because the mean of its divisors is an integer number (33495936).

Almost surely, 2^133102121 is an apocalyptic number.

It is an amenable number.

133102121 is a deficient number, since it is larger than the sum of its proper divisors (881623).

133102121 is an equidigital number, since it uses as much as digits as its factorization.

133102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881622.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 133102121 is about 11536.9892519669. The cubic root of 133102121 is about 510.5774837518.

Adding to 133102121 its reverse (121201331), we get a palindrome (254303452).

The spelling of 133102121 in words is "one hundred thirty-three million, one hundred two thousand, one hundred twenty-one".