2321920253 has 4 divisors (see below), whose sum is σ = 2322253980. Its totient is φ = 2321586528.

The previous prime is 2321920229. The next prime is 2321920261. The reversal of 2321920253 is 3520291232.

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 1508700964 + 813219289 = 38842^2 + 28517^2 .

It is a cyclic number.

It is not a de Polignac number, because 2321920253 - 2²⁴ = 2305143037 is a prime.

It is a super-2 number, since 2×2321920253² = 10782627322583168018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321920283) 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 in 3 ways as a sum of consecutive naturals, for example, 156200 + ... + 170417.

It is an arithmetic number, because the mean of its divisors is an integer number (580563495).

Almost surely, 2^2321920253 is an apocalyptic number.

It is an amenable number.

2321920253 is a deficient number, since it is larger than the sum of its proper divisors (333727).

2321920253 is an equidigital number, since it uses as much as digits as its factorization.

2321920253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333726.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 2321920253 is about 48186.3077336291. The cubic root of 2321920253 is about 1324.1863290563.

The spelling of 2321920253 in words is "two billion, three hundred twenty-one million, nine hundred twenty thousand, two hundred fifty-three".