1331142013 has 8 divisors (see below), whose sum is σ = 1362626496. Its totient is φ = 1299681600.

The previous prime is 1331141993. The next prime is 1331142019. The reversal of 1331142013 is 3102411331.

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 1331142013 - 2²¹ = 1329044861 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 (1331142019) 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, 157608 + ... + 165838.

It is an arithmetic number, because the mean of its divisors is an integer number (170328312).

Almost surely, 2^1331142013 is an apocalyptic number.

It is an amenable number.

1331142013 is a deficient number, since it is larger than the sum of its proper divisors (31484483).

1331142013 is an equidigital number, since it uses as much as digits as its factorization.

1331142013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12035.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1331142013 is about 36484.8189388409. The cubic root of 1331142013 is about 1100.0391206473.

Adding to 1331142013 its reverse (3102411331), we get a palindrome (4433553344).

The spelling of 1331142013 in words is "one billion, three hundred thirty-one million, one hundred forty-two thousand, thirteen".