1312998323 has 8 divisors (see below), whose sum is σ = 1615998048. Its totient is φ = 1038855744.

The previous prime is 1312998311. The next prime is 1312998347. The reversal of 1312998323 is 3238992131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312998323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1312998353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7214186 + ... + 7214367.

It is an arithmetic number, because the mean of its divisors is an integer number (201999756).

Almost surely, 2^1312998323 is an apocalyptic number.

1312998323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1312998323 is a deficient number, since it is larger than the sum of its proper divisors (302999725).

1312998323 is a wasteful number, since it uses less digits than its factorization.

1312998323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14428573.

The product of its digits is 69984, while the sum is 41.

The square root of 1312998323 is about 36235.3187235879. The cubic root of 1312998323 is about 1095.0183334781.

The spelling of 1312998323 in words is "one billion, three hundred twelve million, nine hundred ninety-eight thousand, three hundred twenty-three".