1310320235 has 16 divisors (see below), whose sum is σ = 1875142656. Its totient is φ = 859439328.

The previous prime is 1310320223. The next prime is 1310320247. The reversal of 1310320235 is 5320230131.

It is an interprime number because it is at equal distance from previous prime (1310320223) and next prime (1310320247).

It is a cyclic number.

It is not a de Polignac number, because 1310320235 - 2¹⁸ = 1310058091 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 813059 + ... + 814668.

It is an arithmetic number, because the mean of its divisors is an integer number (117196416).

Almost surely, 2^1310320235 is an apocalyptic number.

1310320235 is a deficient number, since it is larger than the sum of its proper divisors (564822421).

1310320235 is a wasteful number, since it uses less digits than its factorization.

1310320235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627762.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 1310320235 is about 36198.3457494952. The cubic root of 1310320235 is about 1094.2733334051.

Adding to 1310320235 its reverse (5320230131), we get a palindrome (6630550366).

The spelling of 1310320235 in words is "one billion, three hundred ten million, three hundred twenty thousand, two hundred thirty-five".