1320000023 has 4 divisors (see below), whose sum is σ = 1320524088. Its totient is φ = 1319475960.

The previous prime is 1320000001. The next prime is 1320000041. The reversal of 1320000023 is 3200000231.

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 1320000023 - 2¹⁶ = 1319934487 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1319999959 and 1320000013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320000083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258236 + ... + 263297.

It is an arithmetic number, because the mean of its divisors is an integer number (330131022).

Almost surely, 2^1320000023 is an apocalyptic number.

1320000023 is a deficient number, since it is larger than the sum of its proper divisors (524065).

1320000023 is an equidigital number, since it uses as much as digits as its factorization.

1320000023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524064.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 1320000023 is about 36331.8045656970. The cubic root of 1320000023 is about 1096.9613168578.

Adding to 1320000023 its reverse (3200000231), we get a palindrome (4520000254).

The spelling of 1320000023 in words is "one billion, three hundred twenty million, twenty-three", and thus it is an aban number.