1200013023 has 12 divisors (see below), whose sum is σ = 1758697304. Its totient is φ = 727280400.

The previous prime is 1200013021. The next prime is 1200013037. The reversal of 1200013023 is 3203100021.

It is a happy number.

It is not a de Polignac number, because 1200013023 - 2¹ = 1200013021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200013021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1652548 + ... + 1653273.

Almost surely, 2^1200013023 is an apocalyptic number.

1200013023 is a deficient number, since it is larger than the sum of its proper divisors (558684281).

1200013023 is a wasteful number, since it uses less digits than its factorization.

1200013023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3305846 (or 3305835 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1200013023 is about 34641.2041216815. The cubic root of 1200013023 is about 1062.6624133361.

Adding to 1200013023 its reverse (3203100021), we get a palindrome (4403113044).

The spelling of 1200013023 in words is "one billion, two hundred million, thirteen thousand, twenty-three".