1211403004211 has 2 divisors, whose sum is σ = 1211403004212. Its totient is φ = 1211403004210.

The previous prime is 1211403004183. The next prime is 1211403004241. The reversal of 1211403004211 is 1124003041121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1211403004211 is a prime.

It is a super-3 number, since 3×1211403004211³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (1211403004241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605701502105 + 605701502106.

It is an arithmetic number, because the mean of its divisors is an integer number (605701502106).

Almost surely, 2^{1211403004211} is an apocalyptic number.

1211403004211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211403004211 is an equidigital number, since it uses as much as digits as its factorization.

1211403004211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1211403004211 its reverse (1124003041121), we get a palindrome (2335406045332).

The spelling of 1211403004211 in words is "one trillion, two hundred eleven billion, four hundred three million, four thousand, two hundred eleven".