203964232387 has 2 divisors, whose sum is σ = 203964232388. Its totient is φ = 203964232386.

The previous prime is 203964232361. The next prime is 203964232399. The reversal of 203964232387 is 783232469302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203964232387 - 2⁷ = 203964232259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 203964232387.

It is not a weakly prime, because it can be changed into another prime (203964232987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101982116193 + 101982116194.

It is an arithmetic number, because the mean of its divisors is an integer number (101982116194).

Almost surely, 2^203964232387 is an apocalyptic number.

203964232387 is a deficient number, since it is larger than the sum of its proper divisors (1).

203964232387 is an equidigital number, since it uses as much as digits as its factorization.

203964232387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2612736, while the sum is 49.

The spelling of 203964232387 in words is "two hundred three billion, nine hundred sixty-four million, two hundred thirty-two thousand, three hundred eighty-seven".