123001021100002 has 4 divisors (see below), whose sum is σ = 184501531650006. Its totient is φ = 61500510550000.

The previous prime is 123001021099991. The next prime is 123001021100003. The reversal of 123001021100002 is 200001120100321.

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

It can be written as a sum of positive squares in only one way, i.e., 120920131184161 + 2080889915841 = 10996369^2 + 1442529^2 .

It is not an unprimeable number, because it can be changed into a prime (123001021100003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30750255274999 + ... + 30750255275002.

Almost surely, 2^{123001021100002} is an apocalyptic number.

123001021100002 is a deficient number, since it is larger than the sum of its proper divisors (61500510550004).

123001021100002 is an equidigital number, since it uses as much as digits as its factorization.

123001021100002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61500510550003.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 123001021100002 its reverse (200001120100321), we get a palindrome (323002141200323).

The spelling of 123001021100002 in words is "one hundred twenty-three trillion, one billion, twenty-one million, one hundred thousand, two".