203264040643 has 2 divisors, whose sum is σ = 203264040644. Its totient is φ = 203264040642.

The previous prime is 203264040599. The next prime is 203264040671. The reversal of 203264040643 is 346040462302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203264040643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203264040599 and 203264040608.

It is not a weakly prime, because it can be changed into another prime (203264940643) 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, 101632020321 + 101632020322.

It is an arithmetic number, because the mean of its divisors is an integer number (101632020322).

Almost surely, 2^203264040643 is an apocalyptic number.

203264040643 is a deficient number, since it is larger than the sum of its proper divisors (1).

203264040643 is an equidigital number, since it uses as much as digits as its factorization.

203264040643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 34.

The spelling of 203264040643 in words is "two hundred three billion, two hundred sixty-four million, forty thousand, six hundred forty-three".