1211304140411 has 2 divisors, whose sum is σ = 1211304140412. Its totient is φ = 1211304140410.

The previous prime is 1211304140383. The next prime is 1211304140429. The reversal of 1211304140411 is 1140414031121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1211304140411 - 2³⁸ = 936426233467 is a prime.

It is not a weakly prime, because it can be changed into another prime (1211304145411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605652070205 + 605652070206.

It is an arithmetic number, because the mean of its divisors is an integer number (605652070206).

Almost surely, 2^{1211304140411} is an apocalyptic number.

1211304140411 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211304140411 is an equidigital number, since it uses as much as digits as its factorization.

1211304140411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 1211304140411 its reverse (1140414031121), we get a palindrome (2351718171532).

The spelling of 1211304140411 in words is "one trillion, two hundred eleven billion, three hundred four million, one hundred forty thousand, four hundred eleven".