1200010023 has 6 divisors (see below), whose sum is σ = 1733347824. Its totient is φ = 800006676.

The previous prime is 1200010003. The next prime is 1200010033. The reversal of 1200010023 is 3200100021.

It is a happy number.

1200010023 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1200010023 - 2²⁴ = 1183232807 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 133334447 = 1200010023 / (1 + 2 + 0 + 0 + 0 + 1 + 0 + 0 + 2 + 3).

It is a junction number, because it is equal to n+sod(n) for n = 1200009987 and 1200010014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200010003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66667215 + ... + 66667232.

It is an arithmetic number, because the mean of its divisors is an integer number (288891304).

Almost surely, 2^1200010023 is an apocalyptic number.

1200010023 is a deficient number, since it is larger than the sum of its proper divisors (533337801).

1200010023 is a wasteful number, since it uses less digits than its factorization.

1200010023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133334453 (or 133334450 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1200010023 is about 34641.1608206192. The cubic root of 1200010023 is about 1062.6615277929.

Adding to 1200010023 its reverse (3200100021), we get a palindrome (4400110044).

The spelling of 1200010023 in words is "one billion, two hundred million, ten thousand, twenty-three".