100123210312 has 32 divisors (see below), whose sum is σ = 198823989600. Its totient is φ = 47135810304.

The previous prime is 100123210301. The next prime is 100123210321. The reversal of 100123210312 is 213012321001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1995793 + ... + 2045344.

It is an arithmetic number, because the mean of its divisors is an integer number (6213249675).

Almost surely, 2^100123210312 is an apocalyptic number.

It is an amenable number.

100123210312 is a deficient number, since it is larger than the sum of its proper divisors (98700779288).

100123210312 is a wasteful number, since it uses less digits than its factorization.

100123210312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4041325 (or 4041321 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 100123210312 its reverse (213012321001), we get a palindrome (313135531313).

The spelling of 100123210312 in words is "one hundred billion, one hundred twenty-three million, two hundred ten thousand, three hundred twelve".