1330403243 has 4 divisors (see below), whose sum is σ = 1432741968. Its totient is φ = 1228064520.

The previous prime is 1330403231. The next prime is 1330403251. The reversal of 1330403243 is 3423040331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3423040331 = 12527 ⋅273253.

It is a cyclic number.

It is not a de Polignac number, because 1330403243 - 2¹⁰ = 1330402219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1330403203) 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, 51169343 + ... + 51169368.

It is an arithmetic number, because the mean of its divisors is an integer number (358185492).

Almost surely, 2^1330403243 is an apocalyptic number.

1330403243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1330403243 is a deficient number, since it is larger than the sum of its proper divisors (102338725).

1330403243 is a wasteful number, since it uses less digits than its factorization.

1330403243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102338724.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 1330403243 is about 36474.6931858241. The cubic root of 1330403243 is about 1099.8355795570.

Adding to 1330403243 its reverse (3423040331), we get a palindrome (4753443574).

The spelling of 1330403243 in words is "one billion, three hundred thirty million, four hundred three thousand, two hundred forty-three".