123011221022003 has 4 divisors (see below), whose sum is σ = 123026564827080. Its totient is φ = 122995877216928.

The previous prime is 123011221021991. The next prime is 123011221022051. The reversal of 123011221022003 is 300220122110321.

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 123011221022003 - 2⁴ = 123011221021987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123011221922003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7671890513 + ... + 7671906546.

It is an arithmetic number, because the mean of its divisors is an integer number (30756641206770).

Almost surely, 2^{123011221022003} is an apocalyptic number.

123011221022003 is a deficient number, since it is larger than the sum of its proper divisors (15343805077).

123011221022003 is an equidigital number, since it uses as much as digits as its factorization.

123011221022003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15343805076.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 123011221022003 its reverse (300220122110321), we get a palindrome (423231343132324).

The spelling of 123011221022003 in words is "one hundred twenty-three trillion, eleven billion, two hundred twenty-one million, twenty-two thousand, three".