2001013233361 has 2 divisors, whose sum is σ = 2001013233362. Its totient is φ = 2001013233360.

The previous prime is 2001013233347. The next prime is 2001013233371. The reversal of 2001013233361 is 1633323101002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1993899323025 + 7113910336 = 1412055^2 + 84344^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001013233361 - 2¹¹ = 2001013231313 is a prime.

It is not a weakly prime, because it can be changed into another prime (2001013233301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000506616680 + 1000506616681.

It is an arithmetic number, because the mean of its divisors is an integer number (1000506616681).

Almost surely, 2^{2001013233361} is an apocalyptic number.

It is an amenable number.

2001013233361 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001013233361 is an equidigital number, since it uses as much as digits as its factorization.

2001013233361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 2001013233361 its reverse (1633323101002), we get a palindrome (3634336334363).

The spelling of 2001013233361 in words is "two trillion, one billion, thirteen million, two hundred thirty-three thousand, three hundred sixty-one".