121133120241 has 16 divisors (see below), whose sum is σ = 185236050944. Its totient is φ = 68974332624.

The previous prime is 121133120219. The next prime is 121133120243. The reversal of 121133120241 is 142021331121.

It is not a de Polignac number, because 121133120241 - 2⁵ = 121133120209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121133120243) 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, 10185301 + ... + 10197186.

It is an arithmetic number, because the mean of its divisors is an integer number (11577253184).

Almost surely, 2^121133120241 is an apocalyptic number.

It is an amenable number.

121133120241 is a deficient number, since it is larger than the sum of its proper divisors (64102930703).

121133120241 is a wasteful number, since it uses less digits than its factorization.

121133120241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20382780.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 121133120241 its reverse (142021331121), we get a palindrome (263154451362).

The spelling of 121133120241 in words is "one hundred twenty-one billion, one hundred thirty-three million, one hundred twenty thousand, two hundred forty-one".