1330134431 has 4 divisors (see below), whose sum is σ = 1330354200. Its totient is φ = 1329914664.

The previous prime is 1330134427. The next prime is 1330134433. The reversal of 1330134431 is 1344310331.

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 1330134431 - 2² = 1330134427 is a prime.

It is a super-2 number, since 2×1330134431² = 3538515209063387522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1330134397 and 1330134406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330134433) 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, 100541 + ... + 112998.

It is an arithmetic number, because the mean of its divisors is an integer number (332588550).

Almost surely, 2^1330134431 is an apocalyptic number.

1330134431 is a deficient number, since it is larger than the sum of its proper divisors (219769).

1330134431 is an equidigital number, since it uses as much as digits as its factorization.

1330134431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219768.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 1330134431 is about 36471.0080886175. The cubic root of 1330134431 is about 1099.7614995321.

Adding to 1330134431 its reverse (1344310331), we get a palindrome (2674444762).

The spelling of 1330134431 in words is "one billion, three hundred thirty million, one hundred thirty-four thousand, four hundred thirty-one".