1211411147 has 2 divisors, whose sum is σ = 1211411148. Its totient is φ = 1211411146.

The previous prime is 1211411029. The next prime is 1211411167. The reversal of 1211411147 is 7411141121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1211411147 is a prime.

It is a super-3 number, since 3×1211411147³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1211411167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605705573 + 605705574.

It is an arithmetic number, because the mean of its divisors is an integer number (605705574).

Almost surely, 2^1211411147 is an apocalyptic number.

1211411147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211411147 is an equidigital number, since it uses as much as digits as its factorization.

1211411147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 224, while the sum is 23.

The square root of 1211411147 is about 34805.3321633338. The cubic root of 1211411147 is about 1066.0163241531.

Adding to 1211411147 its reverse (7411141121), we get a palindrome (8622552268).

It can be divided in two parts, 121141114 and 7, that added together give a palindrome (121141121).

The spelling of 1211411147 in words is "one billion, two hundred eleven million, four hundred eleven thousand, one hundred forty-seven".