1213000323 has 4 divisors (see below), whose sum is σ = 1617333768. Its totient is φ = 808666880.

The previous prime is 1213000309. The next prime is 1213000331. The reversal of 1213000323 is 3230003121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3230003121 = 3 ⋅1076667707.

It is a cyclic number.

It is not a de Polignac number, because 1213000323 - 2⁴ = 1213000307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1213000343) 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, 202166718 + ... + 202166723.

It is an arithmetic number, because the mean of its divisors is an integer number (404333442).

Almost surely, 2^1213000323 is an apocalyptic number.

1213000323 is a deficient number, since it is larger than the sum of its proper divisors (404333445).

1213000323 is an equidigital number, since it uses as much as digits as its factorization.

1213000323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404333444.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1213000323 is about 34828.1541715894. The cubic root of 1213000323 is about 1066.4822676140.

Adding to 1213000323 its reverse (3230003121), we get a palindrome (4443003444).

The spelling of 1213000323 in words is "one billion, two hundred thirteen million, three hundred twenty-three", and thus it is an aban number.