2013221347 has 2 divisors, whose sum is σ = 2013221348. Its totient is φ = 2013221346.

The previous prime is 2013221339. The next prime is 2013221351. The reversal of 2013221347 is 7431223102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2013221347 - 2³ = 2013221339 is a prime.

It is not a weakly prime, because it can be changed into another prime (2013221387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006610673 + 1006610674.

It is an arithmetic number, because the mean of its divisors is an integer number (1006610674).

Almost surely, 2^2013221347 is an apocalyptic number.

2013221347 is a deficient number, since it is larger than the sum of its proper divisors (1).

2013221347 is an equidigital number, since it uses as much as digits as its factorization.

2013221347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 2013221347 is about 44868.9352113464. The cubic root of 2013221347 is about 1262.6912634060.

Adding to 2013221347 its reverse (7431223102), we get a palindrome (9444444449).

The spelling of 2013221347 in words is "two billion, thirteen million, two hundred twenty-one thousand, three hundred forty-seven".