381283303 has 4 divisors (see below), whose sum is σ = 381325968. Its totient is φ = 381240640.

The previous prime is 381283289. The next prime is 381283333. The reversal of 381283303 is 303382183.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 303382183 = 13 ⋅23337091.

It is a cyclic number.

It is not a de Polignac number, because 381283303 - 2⁹ = 381282791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381283333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2218 + ... + 27703.

It is an arithmetic number, because the mean of its divisors is an integer number (95331492).

Almost surely, 2^381283303 is an apocalyptic number.

381283303 is a deficient number, since it is larger than the sum of its proper divisors (42665).

381283303 is a wasteful number, since it uses less digits than its factorization.

381283303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42664.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 381283303 is about 19526.4769735864. The cubic root of 381283303 is about 725.1300934997.

The spelling of 381283303 in words is "three hundred eighty-one million, two hundred eighty-three thousand, three hundred three".