13331220113 has 2 divisors, whose sum is σ = 13331220114. Its totient is φ = 13331220112.

The previous prime is 13331220101. The next prime is 13331220169. The reversal of 13331220113 is 31102213331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12010406464 + 1320813649 = 109592^2 + 36343^2 .

It is a cyclic number.

It is not a de Polignac number, because 13331220113 - 2¹⁴ = 13331203729 is a prime.

It is not a weakly prime, because it can be changed into another prime (13331220193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6665610056 + 6665610057.

It is an arithmetic number, because the mean of its divisors is an integer number (6665610057).

Almost surely, 2^13331220113 is an apocalyptic number.

It is an amenable number.

13331220113 is a deficient number, since it is larger than the sum of its proper divisors (1).

13331220113 is an equidigital number, since it uses as much as digits as its factorization.

13331220113 is an odious number, because the sum of its binary digits is odd.

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

Adding to 13331220113 its reverse (31102213331), we get a palindrome (44433433444).

The spelling of 13331220113 in words is "thirteen billion, three hundred thirty-one million, two hundred twenty thousand, one hundred thirteen".