123302023021 has 8 divisors (see below), whose sum is σ = 131249937600. Its totient is φ = 115499941920.

The previous prime is 123302023007. The next prime is 123302023067. The reversal of 123302023021 is 120320203321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123302023021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 123302023021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123302023081) 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, 36456625 + ... + 36460006.

It is an arithmetic number, because the mean of its divisors is an integer number (16406242200).

Almost surely, 2^123302023021 is an apocalyptic number.

It is an amenable number.

123302023021 is a deficient number, since it is larger than the sum of its proper divisors (7947914579).

123302023021 is an equidigital number, since it uses as much as digits as its factorization.

123302023021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72916739.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 123302023021 its reverse (120320203321), we get a palindrome (243622226342).

The spelling of 123302023021 in words is "one hundred twenty-three billion, three hundred two million, twenty-three thousand, twenty-one".