2001321133241 has 2 divisors, whose sum is σ = 2001321133242. Its totient is φ = 2001321133240.

The previous prime is 2001321133183. The next prime is 2001321133277. The reversal of 2001321133241 is 1423311231002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1194026071225 + 807295062016 = 1092715^2 + 898496^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001321133241 - 2⁶ = 2001321133177 is a prime.

It is not a weakly prime, because it can be changed into another prime (2001321130241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000660566620 + 1000660566621.

It is an arithmetic number, because the mean of its divisors is an integer number (1000660566621).

Almost surely, 2^{2001321133241} is an apocalyptic number.

It is an amenable number.

2001321133241 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001321133241 is an equidigital number, since it uses as much as digits as its factorization.

2001321133241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2001321133241 its reverse (1423311231002), we get a palindrome (3424632364243).

The spelling of 2001321133241 in words is "two trillion, one billion, three hundred twenty-one million, one hundred thirty-three thousand, two hundred forty-one".