2311140173 has 2 divisors, whose sum is σ = 2311140174. Its totient is φ = 2311140172.

The previous prime is 2311140137. The next prime is 2311140203. The reversal of 2311140173 is 3710411132.

It is a happy number.

Together with previous prime (2311140137) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2250268969 + 60871204 = 47437^2 + 7802^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311140173 - 2⁶ = 2311140109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2311140103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155570086 + 1155570087.

It is an arithmetic number, because the mean of its divisors is an integer number (1155570087).

Almost surely, 2^2311140173 is an apocalyptic number.

It is an amenable number.

2311140173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311140173 is an equidigital number, since it uses as much as digits as its factorization.

2311140173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 2311140173 is about 48074.3192671514. The cubic root of 2311140173 is about 1322.1338636216.

The spelling of 2311140173 in words is "two billion, three hundred eleven million, one hundred forty thousand, one hundred seventy-three".