1310120219 has 2 divisors, whose sum is σ = 1310120220. Its totient is φ = 1310120218.

The previous prime is 1310120213. The next prime is 1310120239. The reversal of 1310120219 is 9120210131.

It is an a-pointer prime, because the next prime (1310120239) can be obtained adding 1310120219 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1310120219 is a prime.

It is a super-2 number, since 2×1310120219² = 3432829976465215922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1310120219.

It is not a weakly prime, because it can be changed into another prime (1310120213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655060109 + 655060110.

It is an arithmetic number, because the mean of its divisors is an integer number (655060110).

Almost surely, 2^1310120219 is an apocalyptic number.

1310120219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310120219 is an equidigital number, since it uses as much as digits as its factorization.

1310120219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 1310120219 is about 36195.5828658691. The cubic root of 1310120219 is about 1094.2176515173.

The spelling of 1310120219 in words is "one billion, three hundred ten million, one hundred twenty thousand, two hundred nineteen".