2113640644043 has 2 divisors, whose sum is σ = 2113640644044. Its totient is φ = 2113640644042.

The previous prime is 2113640643997. The next prime is 2113640644067. The reversal of 2113640644043 is 3404460463112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2113640644043 - 2¹⁰ = 2113640643019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2113640643988 and 2113640644006.

It is not a weakly prime, because it can be changed into another prime (2113640644343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056820322021 + 1056820322022.

It is an arithmetic number, because the mean of its divisors is an integer number (1056820322022).

Almost surely, 2^{2113640644043} is an apocalyptic number.

2113640644043 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113640644043 is an equidigital number, since it uses as much as digits as its factorization.

2113640644043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 2113640644043 in words is "two trillion, one hundred thirteen billion, six hundred forty million, six hundred forty-four thousand, forty-three".