203873840623 has 2 divisors, whose sum is σ = 203873840624. Its totient is φ = 203873840622.

The previous prime is 203873840617. The next prime is 203873840657. The reversal of 203873840623 is 326048378302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203873840623 - 2⁵ = 203873840591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203873849623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101936920311 + 101936920312.

It is an arithmetic number, because the mean of its divisors is an integer number (101936920312).

Almost surely, 2^203873840623 is an apocalyptic number.

203873840623 is a deficient number, since it is larger than the sum of its proper divisors (1).

203873840623 is an equidigital number, since it uses as much as digits as its factorization.

203873840623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1161216, while the sum is 46.

The spelling of 203873840623 in words is "two hundred three billion, eight hundred seventy-three million, eight hundred forty thousand, six hundred twenty-three".