1211142041303 has 2 divisors, whose sum is σ = 1211142041304. Its totient is φ = 1211142041302.

The previous prime is 1211142041287. The next prime is 1211142041311. The reversal of 1211142041303 is 3031402411121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1211142041303 - 2⁴ = 1211142041287 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211142041323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605571020651 + 605571020652.

It is an arithmetic number, because the mean of its divisors is an integer number (605571020652).

Almost surely, 2^{1211142041303} is an apocalyptic number.

1211142041303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211142041303 is an equidigital number, since it uses as much as digits as its factorization.

1211142041303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1211142041303 its reverse (3031402411121), we get a palindrome (4242544452424).

The spelling of 1211142041303 in words is "one trillion, two hundred eleven billion, one hundred forty-two million, forty-one thousand, three hundred three".