1310222993 has 4 divisors (see below), whose sum is σ = 1311616308. Its totient is φ = 1308829680.

The previous prime is 1310222983. The next prime is 1310223001. The reversal of 1310222993 is 3992220131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 908901904 + 401321089 = 30148^2 + 20033^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310222993 - 2¹⁸ = 1309960849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310222983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 695246 + ... + 697127.

It is an arithmetic number, because the mean of its divisors is an integer number (327904077).

Almost surely, 2^1310222993 is an apocalyptic number.

It is an amenable number.

1310222993 is a deficient number, since it is larger than the sum of its proper divisors (1393315).

1310222993 is an equidigital number, since it uses as much as digits as its factorization.

1310222993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393314.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 1310222993 is about 36197.0025416470. The cubic root of 1310222993 is about 1094.2462631879.

The spelling of 1310222993 in words is "one billion, three hundred ten million, two hundred twenty-two thousand, nine hundred ninety-three".