1331313401 has 8 divisors (see below), whose sum is σ = 1537773984. Its totient is φ = 1139091520.

The previous prime is 1331313397. The next prime is 1331313407. The reversal of 1331313401 is 1043131331.

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 1331313401 - 2² = 1331313397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331313407) 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, 3559475 + ... + 3559848.

It is an arithmetic number, because the mean of its divisors is an integer number (192221748).

Almost surely, 2^1331313401 is an apocalyptic number.

1331313401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1331313401 is a deficient number, since it is larger than the sum of its proper divisors (206460583).

1331313401 is a wasteful number, since it uses less digits than its factorization.

1331313401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7119351.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 1331313401 is about 36487.1676209596. The cubic root of 1331313401 is about 1100.0863295882.

Adding to 1331313401 its reverse (1043131331), we get a palindrome (2374444732).

The spelling of 1331313401 in words is "one billion, three hundred thirty-one million, three hundred thirteen thousand, four hundred one".