1211203020371 has 2 divisors, whose sum is σ = 1211203020372. Its totient is φ = 1211203020370.

The previous prime is 1211203020341. The next prime is 1211203020409. The reversal of 1211203020371 is 1730203021121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1211203020371 - 2¹⁰ = 1211203019347 is a prime.

It is not a weakly prime, because it can be changed into another prime (1211203020341) 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, 605601510185 + 605601510186.

It is an arithmetic number, because the mean of its divisors is an integer number (605601510186).

Almost surely, 2^{1211203020371} is an apocalyptic number.

1211203020371 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211203020371 is an equidigital number, since it uses as much as digits as its factorization.

1211203020371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

Adding to 1211203020371 its reverse (1730203021121), we get a palindrome (2941406041492).

The spelling of 1211203020371 in words is "one trillion, two hundred eleven billion, two hundred three million, twenty thousand, three hundred seventy-one".