2320188261 has 16 divisors (see below), whose sum is σ = 3183183360. Its totient is φ = 1502571200.

The previous prime is 2320188257. The next prime is 2320188301. The reversal of 2320188261 is 1628810232.

It is not a de Polignac number, because 2320188261 - 2² = 2320188257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2320188251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56181 + ... + 88298.

It is an arithmetic number, because the mean of its divisors is an integer number (198948960).

Almost surely, 2^2320188261 is an apocalyptic number.

It is an amenable number.

2320188261 is a deficient number, since it is larger than the sum of its proper divisors (862995099).

2320188261 is a wasteful number, since it uses less digits than its factorization.

2320188261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144636.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 2320188261 is about 48168.3325536602. The cubic root of 2320188261 is about 1323.8569966685.

Adding to 2320188261 its reverse (1628810232), we get a palindrome (3948998493).

The spelling of 2320188261 in words is "two billion, three hundred twenty million, one hundred eighty-eight thousand, two hundred sixty-one".