2361223261 has 2 divisors, whose sum is σ = 2361223262. Its totient is φ = 2361223260.

The previous prime is 2361223231. The next prime is 2361223273. The reversal of 2361223261 is 1623221632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2209564036 + 151659225 = 47006^2 + 12315^2 .

It is a cyclic number.

It is not a de Polignac number, because 2361223261 - 2¹⁷ = 2361092189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2361223231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1180611630 + 1180611631.

It is an arithmetic number, because the mean of its divisors is an integer number (1180611631).

Almost surely, 2^2361223261 is an apocalyptic number.

It is an amenable number.

2361223261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2361223261 is an equidigital number, since it uses as much as digits as its factorization.

2361223261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 28.

The square root of 2361223261 is about 48592.4197895104. The cubic root of 2361223261 is about 1331.6160394523.

Adding to 2361223261 its reverse (1623221632), we get a palindrome (3984444893).

The spelling of 2361223261 in words is "two billion, three hundred sixty-one million, two hundred twenty-three thousand, two hundred sixty-one".