121001233 has 4 divisors (see below), whose sum is σ = 121306420. Its totient is φ = 120696048.

The previous prime is 121001213. The next prime is 121001239. The reversal of 121001233 is 332100121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332100121 = 79 ⋅4203799.

It can be written as a sum of positive squares in 2 ways, for example, as 93470224 + 27531009 = 9668^2 + 5247^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121001233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121001239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151998 + ... + 152791.

It is an arithmetic number, because the mean of its divisors is an integer number (30326605).

Almost surely, 2^121001233 is an apocalyptic number.

It is an amenable number.

121001233 is a deficient number, since it is larger than the sum of its proper divisors (305187).

121001233 is an equidigital number, since it uses as much as digits as its factorization.

121001233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305186.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 121001233 is about 11000.0560453118. The cubic root of 121001233 is about 494.6104243538.

Adding to 121001233 its reverse (332100121), we get a palindrome (453101354).

The spelling of 121001233 in words is "one hundred twenty-one million, one thousand, two hundred thirty-three".