1203011123003 has 4 divisors (see below), whose sum is σ = 1203702113328. Its totient is φ = 1202320132680.

The previous prime is 1203011122993. The next prime is 1203011123057. The reversal of 1203011123003 is 3003211103021.

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 1203011123003 - 2⁶ = 1203011122939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1203011123063) 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, 345492551 + ... + 345496032.

It is an arithmetic number, because the mean of its divisors is an integer number (300925528332).

Almost surely, 2^{1203011123003} is an apocalyptic number.

1203011123003 is a deficient number, since it is larger than the sum of its proper divisors (690990325).

1203011123003 is an equidigital number, since it uses as much as digits as its factorization.

1203011123003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690990324.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1203011123003 its reverse (3003211103021), we get a palindrome (4206222226024).

The spelling of 1203011123003 in words is "one trillion, two hundred three billion, eleven million, one hundred twenty-three thousand, three".