1213341201001 has 2 divisors, whose sum is σ = 1213341201002. Its totient is φ = 1213341201000.

The previous prime is 1213341200999. The next prime is 1213341201041. The reversal of 1213341201001 is 1001021433121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1195129968400 + 18211232601 = 1093220^2 + 134949^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213341201001 - 2¹ = 1213341200999 is a prime.

Together with 1213341200999, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1213341201001.

It is not a weakly prime, because it can be changed into another prime (1213341201041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606670600500 + 606670600501.

It is an arithmetic number, because the mean of its divisors is an integer number (606670600501).

Almost surely, 2^{1213341201001} is an apocalyptic number.

It is an amenable number.

1213341201001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213341201001 is an equidigital number, since it uses as much as digits as its factorization.

1213341201001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1213341201001 its reverse (1001021433121), we get a palindrome (2214362634122).

The spelling of 1213341201001 in words is "one trillion, two hundred thirteen billion, three hundred forty-one million, two hundred one thousand, one".