1331132663 has 16 divisors (see below), whose sum is σ = 1529580864. Its totient is φ = 1134777600.

The previous prime is 1331132633. The next prime is 1331132681. The reversal of 1331132663 is 3662311331.

It is a cyclic number.

It is not a de Polignac number, because 1331132663 - 2¹² = 1331128567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331132633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1669781 + ... + 1670577.

It is an arithmetic number, because the mean of its divisors is an integer number (95598804).

Almost surely, 2^1331132663 is an apocalyptic number.

1331132663 is a deficient number, since it is larger than the sum of its proper divisors (198448201).

1331132663 is an equidigital number, since it uses as much as digits as its factorization.

1331132663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802.

The product of its digits is 5832, while the sum is 29.

The square root of 1331132663 is about 36484.6908031300. The cubic root of 1331132663 is about 1100.0365450668.

Adding to 1331132663 its reverse (3662311331), we get a palindrome (4993443994).

The spelling of 1331132663 in words is "one billion, three hundred thirty-one million, one hundred thirty-two thousand, six hundred sixty-three".