133121002121 has 8 divisors (see below), whose sum is σ = 133696528800. Its totient is φ = 132545922048.

The previous prime is 133121002103. The next prime is 133121002129. The reversal of 133121002121 is 121200121331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133121002121 - 2²⁶ = 133053893257 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 133121002121.

It is not an unprimeable number, because it can be changed into a prime (133121002129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492830 + ... + 713528.

It is an arithmetic number, because the mean of its divisors is an integer number (16712066100).

Almost surely, 2^133121002121 is an apocalyptic number.

It is an amenable number.

133121002121 is a deficient number, since it is larger than the sum of its proper divisors (575526679).

133121002121 is a wasteful number, since it uses less digits than its factorization.

133121002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223303.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 133121002121 its reverse (121200121331), we get a palindrome (254321123452).

The spelling of 133121002121 in words is "one hundred thirty-three billion, one hundred twenty-one million, two thousand, one hundred twenty-one".