1331368427 has 8 divisors (see below), whose sum is σ = 1359234000. Its totient is φ = 1303604640.

The previous prime is 1331368417. The next prime is 1331368477. The reversal of 1331368427 is 7248631331.

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 1331368427 - 2⁴ = 1331368411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331368417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1277 + ... + 51617.

It is an arithmetic number, because the mean of its divisors is an integer number (169904250).

Almost surely, 2^1331368427 is an apocalyptic number.

1331368427 is a deficient number, since it is larger than the sum of its proper divisors (27865573).

1331368427 is an equidigital number, since it uses as much as digits as its factorization.

1331368427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50893.

The product of its digits is 72576, while the sum is 38.

The square root of 1331368427 is about 36487.9216590915. The cubic root of 1331368427 is about 1100.1014856780.

Adding to 1331368427 its reverse (7248631331), we get a palindrome (8579999758).

The spelling of 1331368427 in words is "one billion, three hundred thirty-one million, three hundred sixty-eight thousand, four hundred twenty-seven".