1323000031 has 4 divisors (see below), whose sum is σ = 1323544464. Its totient is φ = 1322455600.

The previous prime is 1322999999. The next prime is 1323000037. The reversal of 1323000031 is 1300003231.

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

It is a cyclic number.

It is not a de Polignac number, because 1323000031 - 2⁵ = 1322999999 is a prime.

It is a super-2 number, since 2×1323000031² = 3500658164052001922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1322999975 and 1323000020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323000037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268555 + ... + 273436.

It is an arithmetic number, because the mean of its divisors is an integer number (330886116).

Almost surely, 2^1323000031 is an apocalyptic number.

1323000031 is a deficient number, since it is larger than the sum of its proper divisors (544433).

1323000031 is an equidigital number, since it uses as much as digits as its factorization.

1323000031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544432.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 1323000031 is about 36373.0673850859. The cubic root of 1323000031 is about 1097.7917215812.

Adding to 1323000031 its reverse (1300003231), we get a palindrome (2623003262).

The spelling of 1323000031 in words is "one billion, three hundred twenty-three million, thirty-one", and thus it is an aban number.