2291122373 has 2 divisors, whose sum is σ = 2291122374. Its totient is φ = 2291122372.

The previous prime is 2291122369. The next prime is 2291122387. The reversal of 2291122373 is 3732211922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1596641764 + 694480609 = 39958^2 + 26353^2 .

It is a cyclic number.

It is not a de Polignac number, because 2291122373 - 2² = 2291122369 is a prime.

It is a super-3 number, since 3×2291122373³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2291122303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1145561186 + 1145561187.

It is an arithmetic number, because the mean of its divisors is an integer number (1145561187).

Almost surely, 2^2291122373 is an apocalyptic number.

It is an amenable number.

2291122373 is a deficient number, since it is larger than the sum of its proper divisors (1).

2291122373 is an equidigital number, since it uses as much as digits as its factorization.

2291122373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 32.

The square root of 2291122373 is about 47865.6700882793. The cubic root of 2291122373 is about 1318.3055954772.

The spelling of 2291122373 in words is "two billion, two hundred ninety-one million, one hundred twenty-two thousand, three hundred seventy-three".