1331454343 has 4 divisors (see below), whose sum is σ = 1332680320. Its totient is φ = 1330228368.

The previous prime is 1331454307. The next prime is 1331454367. The reversal of 1331454343 is 3434541331.

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 1331454343 - 2²⁹ = 794583431 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 (1331457343) 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, 611358 + ... + 613531.

It is an arithmetic number, because the mean of its divisors is an integer number (333170080).

Almost surely, 2^1331454343 is an apocalyptic number.

1331454343 is a deficient number, since it is larger than the sum of its proper divisors (1225977).

1331454343 is a wasteful number, since it uses less digits than its factorization.

1331454343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225976.

The product of its digits is 25920, while the sum is 31.

The square root of 1331454343 is about 36489.0989611966. The cubic root of 1331454343 is about 1100.1251491219.

Adding to 1331454343 its reverse (3434541331), we get a palindrome (4765995674).

The spelling of 1331454343 in words is "one billion, three hundred thirty-one million, four hundred fifty-four thousand, three hundred forty-three".