1368610321 has 16 divisors (see below), whose sum is σ = 1514571520. Its totient is φ = 1228711680.

The previous prime is 1368610307. The next prime is 1368610339. The reversal of 1368610321 is 1230168631.

It is a cyclic number.

It is not a de Polignac number, because 1368610321 - 2¹⁷ = 1368479249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1368610301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129640 + ... + 139798.

It is an arithmetic number, because the mean of its divisors is an integer number (94660720).

Almost surely, 2^1368610321 is an apocalyptic number.

It is an amenable number.

1368610321 is a deficient number, since it is larger than the sum of its proper divisors (145961199).

1368610321 is a wasteful number, since it uses less digits than its factorization.

1368610321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10456.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1368610321 is about 36994.7336927839. The cubic root of 1368610321 is about 1110.2648830827.

Adding to 1368610321 its reverse (1230168631), we get a palindrome (2598778952).

The spelling of 1368610321 in words is "one billion, three hundred sixty-eight million, six hundred ten thousand, three hundred twenty-one".