1330131403 has 4 divisors (see below), whose sum is σ = 1331450680. Its totient is φ = 1328812128.

The previous prime is 1330131379. The next prime is 1330131409. The reversal of 1330131403 is 3041310331.

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 1330131403 - 2²¹ = 1328034251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1330131409) 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, 658125 + ... + 660142.

It is an arithmetic number, because the mean of its divisors is an integer number (332862670).

Almost surely, 2^1330131403 is an apocalyptic number.

1330131403 is a deficient number, since it is larger than the sum of its proper divisors (1319277).

1330131403 is a wasteful number, since it uses less digits than its factorization.

1330131403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319276.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1330131403 is about 36470.9665761685. The cubic root of 1330131403 is about 1099.7606650098.

Adding to 1330131403 its reverse (3041310331), we get a palindrome (4371441734).

The spelling of 1330131403 in words is "one billion, three hundred thirty million, one hundred thirty-one thousand, four hundred three".