13113110323021 has 2 divisors, whose sum is σ = 13113110323022. Its totient is φ = 13113110323020.

The previous prime is 13113110322997. The next prime is 13113110323121. The reversal of 13113110323021 is 12032301131131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7971164055625 + 5141946267396 = 2823325^2 + 2267586^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13113110323021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13113110322983 and 13113110323001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13113110323121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6556555161510 + 6556555161511.

It is an arithmetic number, because the mean of its divisors is an integer number (6556555161511).

Almost surely, 2^{13113110323021} is an apocalyptic number.

It is an amenable number.

13113110323021 is a deficient number, since it is larger than the sum of its proper divisors (1).

13113110323021 is an equidigital number, since it uses as much as digits as its factorization.

13113110323021 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 22.

Adding to 13113110323021 its reverse (12032301131131), we get a palindrome (25145411454152).

The spelling of 13113110323021 in words is "thirteen trillion, one hundred thirteen billion, one hundred ten million, three hundred twenty-three thousand, twenty-one".