133241211213121 has 4 divisors (see below), whose sum is σ = 145354048596144. Its totient is φ = 121128373830100.

The previous prime is 133241211213119. The next prime is 133241211213233. The reversal of 133241211213121 is 121312112142331.

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 133241211213121 - 2¹ = 133241211213119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133241211213121.

It is not an unprimeable number, because it can be changed into a prime (133241211213521) 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, 6056418691495 + ... + 6056418691516.

It is an arithmetic number, because the mean of its divisors is an integer number (36338512149036).

Almost surely, 2^{133241211213121} is an apocalyptic number.

133241211213121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

133241211213121 is a deficient number, since it is larger than the sum of its proper divisors (12112837383023).

133241211213121 is a wasteful number, since it uses less digits than its factorization.

133241211213121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12112837383022.

The product of its digits is 1728, while the sum is 28.

Adding to 133241211213121 its reverse (121312112142331), we get a palindrome (254553323355452).

The spelling of 133241211213121 in words is "one hundred thirty-three trillion, two hundred forty-one billion, two hundred eleven million, two hundred thirteen thousand, one hundred twenty-one".