123203021232001 has 4 divisors (see below), whose sum is σ = 125222742891604. Its totient is φ = 121183299572400.

The previous prime is 123203021231963. The next prime is 123203021232059. The reversal of 123203021232001 is 100232120302321.

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 29931851942001 + 93271169290000 = 5471001^2 + 9657700^2 .

It is not a de Polignac number, because 123203021232001 - 2³⁹ = 122653265418113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123203021242001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1009860829710 + ... + 1009860829831.

It is an arithmetic number, because the mean of its divisors is an integer number (31305685722901).

Almost surely, 2^{123203021232001} is an apocalyptic number.

It is an amenable number.

123203021232001 is a deficient number, since it is larger than the sum of its proper divisors (2019721659603).

123203021232001 is an equidigital number, since it uses as much as digits as its factorization.

123203021232001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2019721659602.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 123203021232001 its reverse (100232120302321), we get a palindrome (223435141534322).

The spelling of 123203021232001 in words is "one hundred twenty-three trillion, two hundred three billion, twenty-one million, two hundred thirty-two thousand, one".