123023303021 has 8 divisors (see below), whose sum is σ = 125981876064. Its totient is φ = 120069164880.

The previous prime is 123023303009. The next prime is 123023303063. The reversal of 123023303021 is 120303320321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123023303021 - 2¹⁰ = 123023301997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123023302984 and 123023303002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123023353021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1052546 + ... + 1163571.

It is an arithmetic number, because the mean of its divisors is an integer number (15747734508).

Almost surely, 2^123023303021 is an apocalyptic number.

It is an amenable number.

123023303021 is a deficient number, since it is larger than the sum of its proper divisors (2958573043).

123023303021 is a wasteful number, since it uses less digits than its factorization.

123023303021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2217451.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 123023303021 its reverse (120303320321), we get a palindrome (243326623342).

The spelling of 123023303021 in words is "one hundred twenty-three billion, twenty-three million, three hundred three thousand, twenty-one".