2321251361 has 32 divisors (see below), whose sum is σ = 2784571776. Its totient is φ = 1907136000.

The previous prime is 2321251319. The next prime is 2321251393. The reversal of 2321251361 is 1631521232.

It is a happy number.

It is not a de Polignac number, because 2321251361 - 2²⁶ = 2254142497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2321251361.

It is not an unprimeable number, because it can be changed into a prime (2321251861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2450690 + ... + 2451636.

It is an arithmetic number, because the mean of its divisors is an integer number (87017868).

Almost surely, 2^2321251361 is an apocalyptic number.

It is an amenable number.

2321251361 is a deficient number, since it is larger than the sum of its proper divisors (463320415).

2321251361 is a wasteful number, since it uses less digits than its factorization.

2321251361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313.

The product of its digits is 2160, while the sum is 26.

The square root of 2321251361 is about 48179.3665483472. The cubic root of 2321251361 is about 1324.0591609350.

Adding to 2321251361 its reverse (1631521232), we get a palindrome (3952772593).

The spelling of 2321251361 in words is "two billion, three hundred twenty-one million, two hundred fifty-one thousand, three hundred sixty-one".