1211341471 has 2 divisors, whose sum is σ = 1211341472. Its totient is φ = 1211341470.

The previous prime is 1211341463. The next prime is 1211341499. The reversal of 1211341471 is 1741431121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1211341471 - 2³ = 1211341463 is a prime.

It is a super-3 number, since 3×1211341471³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211348471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605670735 + 605670736.

It is an arithmetic number, because the mean of its divisors is an integer number (605670736).

Almost surely, 2^1211341471 is an apocalyptic number.

1211341471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211341471 is an equidigital number, since it uses as much as digits as its factorization.

1211341471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 672, while the sum is 25.

The square root of 1211341471 is about 34804.3312103537. The cubic root of 1211341471 is about 1065.9958859565.

Adding to 1211341471 its reverse (1741431121), we get a palindrome (2952772592).

The spelling of 1211341471 in words is "one billion, two hundred eleven million, three hundred forty-one thousand, four hundred seventy-one".