1313321983 has 2 divisors, whose sum is σ = 1313321984. Its totient is φ = 1313321982.

The previous prime is 1313321981. The next prime is 1313322001. The reversal of 1313321983 is 3891233131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1313321983 - 2¹ = 1313321981 is a prime.

Together with 1313321981, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313321981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656660991 + 656660992.

It is an arithmetic number, because the mean of its divisors is an integer number (656660992).

Almost surely, 2^1313321983 is an apocalyptic number.

1313321983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313321983 is an equidigital number, since it uses as much as digits as its factorization.

1313321983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 34.

The square root of 1313321983 is about 36239.7845330239. The cubic root of 1313321983 is about 1095.1083017363.

The spelling of 1313321983 in words is "one billion, three hundred thirteen million, three hundred twenty-one thousand, nine hundred eighty-three".