123321002021 has 8 divisors (see below), whose sum is σ = 140945604480. Its totient is φ = 105698228688.

The previous prime is 123321001957. The next prime is 123321002033. The reversal of 123321002021 is 120200123321.

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

It is a cyclic number.

It is not a de Polignac number, because 123321002021 - 2⁶ = 123321001957 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 (123321002041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309626 + ... + 585243.

It is an arithmetic number, because the mean of its divisors is an integer number (17618200560).

Almost surely, 2^123321002021 is an apocalyptic number.

It is an amenable number.

123321002021 is a deficient number, since it is larger than the sum of its proper divisors (17624602459).

123321002021 is an equidigital number, since it uses as much as digits as its factorization.

123321002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914563.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 123321002021 its reverse (120200123321), we get a palindrome (243521125342).

The spelling of 123321002021 in words is "one hundred twenty-three billion, three hundred twenty-one million, two thousand, twenty-one".