123300113021 has 4 divisors (see below), whose sum is σ = 123601580700. Its totient is φ = 122998645344.

The previous prime is 123300113011. The next prime is 123300113023. The reversal of 123300113021 is 120311003321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 111826704025 + 11473408996 = 334405^2 + 107114^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123300113021 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 (123300113023) 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, 150733226 + ... + 150734043.

It is an arithmetic number, because the mean of its divisors is an integer number (30900395175).

Almost surely, 2^123300113021 is an apocalyptic number.

It is an amenable number.

123300113021 is a deficient number, since it is larger than the sum of its proper divisors (301467679).

123300113021 is an equidigital number, since it uses as much as digits as its factorization.

123300113021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301467678.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 123300113021 its reverse (120311003321), we get a palindrome (243611116342).

The spelling of 123300113021 in words is "one hundred twenty-three billion, three hundred million, one hundred thirteen thousand, twenty-one".