1313011919 has 2 divisors, whose sum is σ = 1313011920. Its totient is φ = 1313011918.

The previous prime is 1313011907. The next prime is 1313011939. The reversal of 1313011919 is 9191103131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1313011919 - 2¹² = 1313007823 is a prime.

It is a super-2 number, since 2×1313011919² = 3448000598872125122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1313011891 and 1313011900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313011939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656505959 + 656505960.

It is an arithmetic number, because the mean of its divisors is an integer number (656505960).

Almost surely, 2^1313011919 is an apocalyptic number.

1313011919 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313011919 is an equidigital number, since it uses as much as digits as its factorization.

1313011919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 729, while the sum is 29.

The square root of 1313011919 is about 36235.5063301177. The cubic root of 1313011919 is about 1095.0221130762.

The spelling of 1313011919 in words is "one billion, three hundred thirteen million, eleven thousand, nine hundred nineteen".