2321203261 has 4 divisors (see below), whose sum is σ = 2499757372. Its totient is φ = 2142649152.

The previous prime is 2321203259. The next prime is 2321203271. The reversal of 2321203261 is 1623021232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 452370361 + 1868832900 = 21269^2 + 43230^2 .

It is a cyclic number.

It is not a de Polignac number, because 2321203261 - 2¹ = 2321203259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321203231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89277036 + ... + 89277061.

It is an arithmetic number, because the mean of its divisors is an integer number (624939343).

Almost surely, 2^2321203261 is an apocalyptic number.

It is an amenable number.

2321203261 is a deficient number, since it is larger than the sum of its proper divisors (178554111).

2321203261 is a wasteful number, since it uses less digits than its factorization.

2321203261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178554110.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2321203261 is about 48178.8673694183. The cubic root of 2321203261 is about 1324.0500153384.

Adding to 2321203261 its reverse (1623021232), we get a palindrome (3944224493).

The spelling of 2321203261 in words is "two billion, three hundred twenty-one million, two hundred three thousand, two hundred sixty-one".