2001213241 has 2 divisors, whose sum is σ = 2001213242. Its totient is φ = 2001213240.

The previous prime is 2001213173. The next prime is 2001213257. The reversal of 2001213241 is 1423121002.

It is an a-pointer prime, because the next prime (2001213257) can be obtained adding 2001213241 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1550075641 + 451137600 = 39371^2 + 21240^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001213241 - 2⁷ = 2001213113 is a prime.

It is a nialpdrome in base 15.

It is not a weakly prime, because it can be changed into another prime (2001213281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000606620 + 1000606621.

It is an arithmetic number, because the mean of its divisors is an integer number (1000606621).

Almost surely, 2^2001213241 is an apocalyptic number.

It is an amenable number.

2001213241 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001213241 is an equidigital number, since it uses as much as digits as its factorization.

2001213241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2001213241 is about 44734.9219402471. The cubic root of 2001213241 is about 1260.1757630428.

Adding to 2001213241 its reverse (1423121002), we get a palindrome (3424334243).

The spelling of 2001213241 in words is "two billion, one million, two hundred thirteen thousand, two hundred forty-one".