385400203 has 2 divisors, whose sum is σ = 385400204. Its totient is φ = 385400202.

The previous prime is 385400189. The next prime is 385400221. The reversal of 385400203 is 302004583.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 385400203 - 2⁹ = 385399691 is a prime.

It is not a weakly prime, because it can be changed into another prime (385400233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192700101 + 192700102.

It is an arithmetic number, because the mean of its divisors is an integer number (192700102).

Almost surely, 2^385400203 is an apocalyptic number.

385400203 is a deficient number, since it is larger than the sum of its proper divisors (1).

385400203 is an equidigital number, since it uses as much as digits as its factorization.

385400203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 385400203 is about 19631.6123382671. The cubic root of 385400203 is about 727.7306161014.

Adding to 385400203 its reverse (302004583), we get a palindrome (687404786).

The spelling of 385400203 in words is "three hundred eighty-five million, four hundred thousand, two hundred three".