1313012219 has 4 divisors (see below), whose sum is σ = 1313501400. Its totient is φ = 1312523040.

The previous prime is 1313012189. The next prime is 1313012231. The reversal of 1313012219 is 9122103131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1313012219 is a prime.

It is a super-2 number, since 2×1313012219² = 3448002174486607922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1313012194 and 1313012203.

It is not an unprimeable number, because it can be changed into a prime (1313012279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240542 + ... + 245939.

It is an arithmetic number, because the mean of its divisors is an integer number (328375350).

Almost surely, 2^1313012219 is an apocalyptic number.

1313012219 is a deficient number, since it is larger than the sum of its proper divisors (489181).

1313012219 is an equidigital number, since it uses as much as digits as its factorization.

1313012219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489180.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 1313012219 is about 36235.5104697036. The cubic root of 1313012219 is about 1095.0221964739.

The spelling of 1313012219 in words is "one billion, three hundred thirteen million, twelve thousand, two hundred nineteen".