2103131322113 has 2 divisors, whose sum is σ = 2103131322114. Its totient is φ = 2103131322112.

The previous prime is 2103131322109. The next prime is 2103131322163. The reversal of 2103131322113 is 3112231313012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1811950211569 + 291181110544 = 1346087^2 + 539612^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103131322113 - 2² = 2103131322109 is a prime.

It is a super-3 number, since 3×2103131322113³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (2103131322163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051565661056 + 1051565661057.

It is an arithmetic number, because the mean of its divisors is an integer number (1051565661057).

Almost surely, 2^{2103131322113} is an apocalyptic number.

It is an amenable number.

2103131322113 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103131322113 is an equidigital number, since it uses as much as digits as its factorization.

2103131322113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 2103131322113 its reverse (3112231313012), we get a palindrome (5215362635125).

The spelling of 2103131322113 in words is "two trillion, one hundred three billion, one hundred thirty-one million, three hundred twenty-two thousand, one hundred thirteen".