123221131303 has 4 divisors (see below), whose sum is σ = 123246737848. Its totient is φ = 123195524760.

The previous prime is 123221131223. The next prime is 123221131333. The reversal of 123221131303 is 303131122321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303131122321 = 61 ⋅4969362661.

It is a cyclic number.

It is not a de Polignac number, because 123221131303 - 2²⁵ = 123187576871 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 (123221131333) 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, 12796053 + ... + 12805678.

It is an arithmetic number, because the mean of its divisors is an integer number (30811684462).

Almost surely, 2^123221131303 is an apocalyptic number.

123221131303 is a deficient number, since it is larger than the sum of its proper divisors (25606545).

123221131303 is an equidigital number, since it uses as much as digits as its factorization.

123221131303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25606544.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 123221131303 its reverse (303131122321), we get a palindrome (426352253624).

The spelling of 123221131303 in words is "one hundred twenty-three billion, two hundred twenty-one million, one hundred thirty-one thousand, three hundred three".