2123373643 has 2 divisors, whose sum is σ = 2123373644. Its totient is φ = 2123373642.

The previous prime is 2123373631. The next prime is 2123373647. The reversal of 2123373643 is 3463733212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2123373643 - 2²⁵ = 2089819211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2123373599 and 2123373608.

It is not a weakly prime, because it can be changed into another prime (2123373647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061686821 + 1061686822.

It is an arithmetic number, because the mean of its divisors is an integer number (1061686822).

Almost surely, 2^2123373643 is an apocalyptic number.

2123373643 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123373643 is an equidigital number, since it uses as much as digits as its factorization.

2123373643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 34.

The square root of 2123373643 is about 46080.0785915128. The cubic root of 2123373643 is about 1285.3127255948.

The spelling of 2123373643 in words is "two billion, one hundred twenty-three million, three hundred seventy-three thousand, six hundred forty-three".