1200012023 has 8 divisors (see below), whose sum is σ = 1377134880. Its totient is φ = 1024312320.

The previous prime is 1200012019. The next prime is 1200012053. The reversal of 1200012023 is 3202100021.

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 not a de Polignac number, because 1200012023 - 2² = 1200012019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200011995 and 1200012013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200012053) 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 7 ways as a sum of consecutive naturals, for example, 353978 + ... + 357351.

It is an arithmetic number, because the mean of its divisors is an integer number (172141860).

Almost surely, 2^1200012023 is an apocalyptic number.

1200012023 is a deficient number, since it is larger than the sum of its proper divisors (177122857).

1200012023 is an equidigital number, since it uses as much as digits as its factorization.

1200012023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711577.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1200012023 is about 34641.1896880000. The cubic root of 1200012023 is about 1062.6621181552.

Adding to 1200012023 its reverse (3202100021), we get a palindrome (4402112044).

The spelling of 1200012023 in words is "one billion, two hundred million, twelve thousand, twenty-three".