1121311320211 has 2 divisors, whose sum is σ = 1121311320212. Its totient is φ = 1121311320210.

The previous prime is 1121311320169. The next prime is 1121311320247. The reversal of 1121311320211 is 1120231131211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121311320211 - 2²³ = 1121302931603 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121311320911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560655660105 + 560655660106.

It is an arithmetic number, because the mean of its divisors is an integer number (560655660106).

Almost surely, 2^{1121311320211} is an apocalyptic number.

1121311320211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121311320211 is an equidigital number, since it uses as much as digits as its factorization.

1121311320211 is an evil number, because the sum of its binary digits is even.

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

Adding to 1121311320211 its reverse (1120231131211), we get a palindrome (2241542451422).

The spelling of 1121311320211 in words is "one trillion, one hundred twenty-one billion, three hundred eleven million, three hundred twenty thousand, two hundred eleven".