1365320231 has 8 divisors (see below), whose sum is σ = 1501169664. Its totient is φ = 1231425720.

The previous prime is 1365320161. The next prime is 1365320233. The reversal of 1365320231 is 1320235631.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1365320231 is a prime.

It is a super-2 number, since 2×1365320231² = 3728198666355786722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1365320231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1365320233) 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, 487265 + ... + 490058.

It is an arithmetic number, because the mean of its divisors is an integer number (187646208).

Almost surely, 2^1365320231 is an apocalyptic number.

1365320231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1365320231 is a deficient number, since it is larger than the sum of its proper divisors (135849433).

1365320231 is a wasteful number, since it uses less digits than its factorization.

1365320231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977461.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 1365320231 is about 36950.2399315620. The cubic root of 1365320231 is about 1109.3744902580.

Adding to 1365320231 its reverse (1320235631), we get a palindrome (2685555862).

The spelling of 1365320231 in words is "one billion, three hundred sixty-five million, three hundred twenty thousand, two hundred thirty-one".