1381303063 has 4 divisors (see below), whose sum is σ = 1578632080. Its totient is φ = 1183974048.

The previous prime is 1381303043. The next prime is 1381303067. The reversal of 1381303063 is 3603031831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1381303063 - 2⁹ = 1381302551 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 (1381303067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98664498 + ... + 98664511.

It is an arithmetic number, because the mean of its divisors is an integer number (394658020).

Almost surely, 2^1381303063 is an apocalyptic number.

1381303063 is a deficient number, since it is larger than the sum of its proper divisors (197329017).

1381303063 is an equidigital number, since it uses as much as digits as its factorization.

1381303063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197329016.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 1381303063 is about 37165.8857421695. The cubic root of 1381303063 is about 1113.6865933404.

Adding to 1381303063 its reverse (3603031831), we get a palindrome (4984334894).

The spelling of 1381303063 in words is "one billion, three hundred eighty-one million, three hundred three thousand, sixty-three".