2251421303 has 8 divisors (see below), whose sum is σ = 2259249408. Its totient is φ = 2243606904.

The previous prime is 2251421279. The next prime is 2251421311. The reversal of 2251421303 is 3031241522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2251421303 - 2⁶ = 2251421239 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 (2251421353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406076 + ... + 411582.

It is an arithmetic number, because the mean of its divisors is an integer number (282406176).

Almost surely, 2^2251421303 is an apocalyptic number.

2251421303 is a deficient number, since it is larger than the sum of its proper divisors (7828105).

2251421303 is an equidigital number, since it uses as much as digits as its factorization.

2251421303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6853.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2251421303 is about 47449.1443863849. The cubic root of 2251421303 is about 1310.6465551459.

Adding to 2251421303 its reverse (3031241522), we get a palindrome (5282662825).

The spelling of 2251421303 in words is "two billion, two hundred fifty-one million, four hundred twenty-one thousand, three hundred three".