1331335423 has 8 divisors (see below), whose sum is σ = 1459893456. Its totient is φ = 1204032000.

The previous prime is 1331335403. The next prime is 1331335469. The reversal of 1331335423 is 3245331331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1331335423 - 2⁵ = 1331335391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1331335391 and 1331335400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331335403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311428 + ... + 315673.

It is an arithmetic number, because the mean of its divisors is an integer number (182486682).

Almost surely, 2^1331335423 is an apocalyptic number.

1331335423 is a deficient number, since it is larger than the sum of its proper divisors (128558033).

1331335423 is a wasteful number, since it uses less digits than its factorization.

1331335423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627305.

The product of its digits is 9720, while the sum is 28.

The square root of 1331335423 is about 36487.4693970410. The cubic root of 1331335423 is about 1100.0923952693.

Adding to 1331335423 its reverse (3245331331), we get a palindrome (4576666754).

The spelling of 1331335423 in words is "one billion, three hundred thirty-one million, three hundred thirty-five thousand, four hundred twenty-three".