1381103033 has 4 divisors (see below), whose sum is σ = 1418430180. Its totient is φ = 1343775888.

The previous prime is 1381103023. The next prime is 1381103039. The reversal of 1381103033 is 3303011831.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3303011831 = 7 ⋅471858833.

It can be written as a sum of positive squares in 2 ways, for example, as 1306677904 + 74425129 = 36148^2 + 8627^2 .

It is a cyclic number.

It is not a de Polignac number, because 1381103033 - 2¹⁸ = 1380840889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1381103039) 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 3 ways as a sum of consecutive naturals, for example, 18663518 + ... + 18663591.

It is an arithmetic number, because the mean of its divisors is an integer number (354607545).

Almost surely, 2^1381103033 is an apocalyptic number.

It is an amenable number.

1381103033 is a deficient number, since it is larger than the sum of its proper divisors (37327147).

1381103033 is an equidigital number, since it uses as much as digits as its factorization.

1381103033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37327146.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1381103033 is about 37163.1946016486. The cubic root of 1381103033 is about 1113.6328321518.

Adding to 1381103033 its reverse (3303011831), we get a palindrome (4684114864).

The spelling of 1381103033 in words is "one billion, three hundred eighty-one million, one hundred three thousand, thirty-three".