1298313223 has 4 divisors (see below), whose sum is σ = 1354761648. Its totient is φ = 1241864800.

The previous prime is 1298313199. The next prime is 1298313229. The reversal of 1298313223 is 3223138921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3223138921 = 6553 ⋅491857.

It is a cyclic number.

It is not a de Polignac number, because 1298313223 - 2⁹ = 1298312711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298313229) 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, 28224178 + ... + 28224223.

It is an arithmetic number, because the mean of its divisors is an integer number (338690412).

Almost surely, 2^1298313223 is an apocalyptic number.

1298313223 is a deficient number, since it is larger than the sum of its proper divisors (56448425).

1298313223 is an equidigital number, since it uses as much as digits as its factorization.

1298313223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56448424.

The product of its digits is 15552, while the sum is 34.

The square root of 1298313223 is about 36032.1137736880. The cubic root of 1298313223 is about 1090.9206437777.

The spelling of 1298313223 in words is "one billion, two hundred ninety-eight million, three hundred thirteen thousand, two hundred twenty-three".