2311201147 has 2 divisors, whose sum is σ = 2311201148. Its totient is φ = 2311201146.

The previous prime is 2311201141. The next prime is 2311201219. The reversal of 2311201147 is 7411021132.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2311201147 is a prime.

It is not a weakly prime, because it can be changed into another prime (2311201141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155600573 + 1155600574.

It is an arithmetic number, because the mean of its divisors is an integer number (1155600574).

Almost surely, 2^2311201147 is an apocalyptic number.

2311201147 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311201147 is an equidigital number, since it uses as much as digits as its factorization.

2311201147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 2311201147 is about 48074.9534269145. The cubic root of 2311201147 is about 1322.1454906506.

Adding to 2311201147 its reverse (7411021132), we get a palindrome (9722222279).

The spelling of 2311201147 in words is "two billion, three hundred eleven million, two hundred one thousand, one hundred forty-seven".