1211327147 has 2 divisors, whose sum is σ = 1211327148. Its totient is φ = 1211327146.

The previous prime is 1211327111. The next prime is 1211327153. The reversal of 1211327147 is 7417231121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1211327147 - 2¹² = 1211323051 is a prime.

It is not a weakly prime, because it can be changed into another prime (1211327167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605663573 + 605663574.

It is an arithmetic number, because the mean of its divisors is an integer number (605663574).

Almost surely, 2^1211327147 is an apocalyptic number.

1211327147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211327147 is an equidigital number, since it uses as much as digits as its factorization.

1211327147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2352, while the sum is 29.

The square root of 1211327147 is about 34804.1254307589. The cubic root of 1211327147 is about 1065.9916841726.

Adding to 1211327147 its reverse (7417231121), we get a palindrome (8628558268).

The spelling of 1211327147 in words is "one billion, two hundred eleven million, three hundred twenty-seven thousand, one hundred forty-seven".