2231500305 has 16 divisors (see below), whose sum is σ = 3571801344. Its totient is φ = 1189666560.

The previous prime is 2231500279. The next prime is 2231500309. The reversal of 2231500305 is 5030051322.

It is not a de Polignac number, because 2231500305 - 2¹⁷ = 2231369233 is a prime.

It is a super-3 number, since 3×2231500305³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (2231500309) 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 in 15 ways as a sum of consecutive naturals, for example, 12217 + ... + 67913.

It is an arithmetic number, because the mean of its divisors is an integer number (223237584).

Almost surely, 2^2231500305 is an apocalyptic number.

It is an amenable number.

2231500305 is a deficient number, since it is larger than the sum of its proper divisors (1340301039).

2231500305 is a wasteful number, since it uses less digits than its factorization.

2231500305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58376.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 2231500305 is about 47238.7585040081. The cubic root of 2231500305 is about 1306.7694820166.

Adding to 2231500305 its reverse (5030051322), we get a palindrome (7261551627).

The spelling of 2231500305 in words is "two billion, two hundred thirty-one million, five hundred thousand, three hundred five".