221113303013 has 2 divisors, whose sum is σ = 221113303014. Its totient is φ = 221113303012.

The previous prime is 221113303003. The next prime is 221113303027. The reversal of 221113303013 is 310303311122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201656679844 + 19456623169 = 449062^2 + 139487^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221113303013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221113303003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110556651506 + 110556651507.

It is an arithmetic number, because the mean of its divisors is an integer number (110556651507).

Almost surely, 2^221113303013 is an apocalyptic number.

It is an amenable number.

221113303013 is a deficient number, since it is larger than the sum of its proper divisors (1).

221113303013 is an equidigital number, since it uses as much as digits as its factorization.

221113303013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 221113303013 its reverse (310303311122), we get a palindrome (531416614135).

The spelling of 221113303013 in words is "two hundred twenty-one billion, one hundred thirteen million, three hundred three thousand, thirteen".