381335303 has 6 divisors (see below), whose sum is σ = 382558176. Its totient is φ = 380116292.

The previous prime is 381335293. The next prime is 381335323. The reversal of 381335303 is 303533183.

It is not a de Polignac number, because 381335303 - 2⁴ = 381335287 is a prime.

It is a super-2 number, since 2×381335303² = 290833226628203618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381335323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118826 + ... + 121992.

It is an arithmetic number, because the mean of its divisors is an integer number (63759696).

Almost surely, 2^381335303 is an apocalyptic number.

381335303 is a deficient number, since it is larger than the sum of its proper divisors (1222873).

381335303 is an frugal number, since it uses more digits than its factorization.

381335303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3861 (or 3514 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 381335303 is about 19527.8084535874. The cubic root of 381335303 is about 725.1630567850.

Adding to 381335303 its reverse (303533183), we get a palindrome (684868486).

The spelling of 381335303 in words is "three hundred eighty-one million, three hundred thirty-five thousand, three hundred three".