1203113211211 has 2 divisors, whose sum is σ = 1203113211212. Its totient is φ = 1203113211210.

The previous prime is 1203113211193. The next prime is 1203113211229. The reversal of 1203113211211 is 1121123113021.

It is a balanced prime because it is at equal distance from previous prime (1203113211193) and next prime (1203113211229).

It is a cyclic number.

It is not a de Polignac number, because 1203113211211 - 2¹¹ = 1203113209163 is a prime.

It is not a weakly prime, because it can be changed into another prime (1203117211211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601556605605 + 601556605606.

It is an arithmetic number, because the mean of its divisors is an integer number (601556605606).

Almost surely, 2^{1203113211211} is an apocalyptic number.

1203113211211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203113211211 is an equidigital number, since it uses as much as digits as its factorization.

1203113211211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 1203113211211 its reverse (1121123113021), we get a palindrome (2324236324232).

The spelling of 1203113211211 in words is "one trillion, two hundred three billion, one hundred thirteen million, two hundred eleven thousand, two hundred eleven".