1200023123003 has 4 divisors (see below), whose sum is σ = 1263182234760. Its totient is φ = 1136864011248.

The previous prime is 1200023122997. The next prime is 1200023123009. The reversal of 1200023123003 is 3003213200021.

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

It is an interprime number because it is at equal distance from previous prime (1200023122997) and next prime (1200023123009).

It is a cyclic number.

It is not a de Polignac number, because 1200023123003 - 2⁸ = 1200023122747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200023123009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31579555850 + ... + 31579555887.

It is an arithmetic number, because the mean of its divisors is an integer number (315795558690).

Almost surely, 2^{1200023123003} is an apocalyptic number.

1200023123003 is a deficient number, since it is larger than the sum of its proper divisors (63159111757).

1200023123003 is an equidigital number, since it uses as much as digits as its factorization.

1200023123003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63159111756.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 1200023123003 its reverse (3003213200021), we get a palindrome (4203236323024).

The spelling of 1200023123003 in words is "one trillion, two hundred billion, twenty-three million, one hundred twenty-three thousand, three".