6313733221 has 2 divisors, whose sum is σ = 6313733222. Its totient is φ = 6313733220.

The previous prime is 6313733191. The next prime is 6313733233. The reversal of 6313733221 is 1223373136.

6313733221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4407100996 + 1906632225 = 66386^2 + 43665^2 .

It is a cyclic number.

It is not a de Polignac number, because 6313733221 - 2¹⁵ = 6313700453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6313733821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3156866610 + 3156866611.

It is an arithmetic number, because the mean of its divisors is an integer number (3156866611).

Almost surely, 2^6313733221 is an apocalyptic number.

It is an amenable number.

6313733221 is a deficient number, since it is larger than the sum of its proper divisors (1).

6313733221 is an equidigital number, since it uses as much as digits as its factorization.

6313733221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 31.

The square root of 6313733221 is about 79459.0033979788. The cubic root of 6313733221 is about 1848.2557917458.

The spelling of 6313733221 in words is "six billion, three hundred thirteen million, seven hundred thirty-three thousand, two hundred twenty-one".