2311251563 has 2 divisors, whose sum is σ = 2311251564. Its totient is φ = 2311251562.

The previous prime is 2311251559. The next prime is 2311251601. The reversal of 2311251563 is 3651521132.

2311251563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2311251563 - 2² = 2311251559 is a prime.

It is not a weakly prime, because it can be changed into another prime (2311250563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155625781 + 1155625782.

It is an arithmetic number, because the mean of its divisors is an integer number (1155625782).

Almost surely, 2^2311251563 is an apocalyptic number.

2311251563 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311251563 is an equidigital number, since it uses as much as digits as its factorization.

2311251563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 29.

The square root of 2311251563 is about 48075.4777719369. The cubic root of 2311251563 is about 1322.1551042379.

Adding to 2311251563 its reverse (3651521132), we get a palindrome (5962772695).

The spelling of 2311251563 in words is "two billion, three hundred eleven million, two hundred fifty-one thousand, five hundred sixty-three".