2013321031873 has 2 divisors, whose sum is σ = 2013321031874. Its totient is φ = 2013321031872.

The previous prime is 2013321031867. The next prime is 2013321031879. The reversal of 2013321031873 is 3781301233102.

It is a balanced prime because it is at equal distance from previous prime (2013321031867) and next prime (2013321031879).

It can be written as a sum of positive squares in only one way, i.e., 1118543142544 + 894777889329 = 1057612^2 + 945927^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2013321031873 is a prime.

It is a super-2 number, since 2×2013321031873² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2013321031879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006660515936 + 1006660515937.

It is an arithmetic number, because the mean of its divisors is an integer number (1006660515937).

Almost surely, 2^{2013321031873} is an apocalyptic number.

It is an amenable number.

2013321031873 is a deficient number, since it is larger than the sum of its proper divisors (1).

2013321031873 is an equidigital number, since it uses as much as digits as its factorization.

2013321031873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

Adding to 2013321031873 its reverse (3781301233102), we get a palindrome (5794622264975).

The spelling of 2013321031873 in words is "two trillion, thirteen billion, three hundred twenty-one million, thirty-one thousand, eight hundred seventy-three".