121001123133 has 16 divisors (see below), whose sum is σ = 195557371200. Its totient is φ = 73334013840.

The previous prime is 121001123129. The next prime is 121001123143. The reversal of 121001123133 is 331321100121.

It is not a de Polignac number, because 121001123133 - 2² = 121001123129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121001123143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203705298 + ... + 203705891.

It is an arithmetic number, because the mean of its divisors is an integer number (12222335700).

Almost surely, 2^121001123133 is an apocalyptic number.

It is an amenable number.

121001123133 is a deficient number, since it is larger than the sum of its proper divisors (74556248067).

121001123133 is a wasteful number, since it uses less digits than its factorization.

121001123133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407411209 (or 407411203 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 121001123133 its reverse (331321100121), we get a palindrome (452322223254).

The spelling of 121001123133 in words is "one hundred twenty-one billion, one million, one hundred twenty-three thousand, one hundred thirty-three".