100123321002 has 16 divisors (see below), whose sum is σ = 202083768480. Its totient is φ = 33068252592.

The previous prime is 100123320991. The next prime is 100123321003. The reversal of 100123321002 is 200123321001.

It is not an unprimeable number, because it can be changed into a prime (100123321003) 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 7 ways as a sum of consecutive naturals, for example, 76546228 + ... + 76547535.

It is an arithmetic number, because the mean of its divisors is an integer number (12630235530).

Almost surely, 2^100123321002 is an apocalyptic number.

100123321002 is an abundant number, since it is smaller than the sum of its proper divisors (101960447478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100123321002 is a wasteful number, since it uses less digits than its factorization.

100123321002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153093877.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 100123321002 its reverse (200123321001), we get a palindrome (300246642003).

Subtracting 100123321002 from its reverse (200123321001), we obtain a palindrome (99999999999).

The spelling of 100123321002 in words is "one hundred billion, one hundred twenty-three million, three hundred twenty-one thousand, two".