2643013031213 has 4 divisors (see below), whose sum is σ = 2645663998140. Its totient is φ = 2640362064288.

The previous prime is 2643013031201. The next prime is 2643013031227. The reversal of 2643013031213 is 3121303103462.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 901212259684 + 1741800771529 = 949322^2 + 1319773^2 .

It is a cyclic number.

It is not a de Polignac number, because 2643013031213 - 2¹² = 2643013027117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643013039213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1325481968 + ... + 1325483961.

It is an arithmetic number, because the mean of its divisors is an integer number (661415999535).

Almost surely, 2^{2643013031213} is an apocalyptic number.

It is an amenable number.

2643013031213 is a deficient number, since it is larger than the sum of its proper divisors (2650966927).

2643013031213 is an equidigital number, since it uses as much as digits as its factorization.

2643013031213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2650966926.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 2643013031213 its reverse (3121303103462), we get a palindrome (5764316134675).

The spelling of 2643013031213 in words is "two trillion, six hundred forty-three billion, thirteen million, thirty-one thousand, two hundred thirteen".