100123043421142 has 48 divisors (see below), whose sum is σ = 178004046633840. Its totient is φ = 42099488837952.

The previous prime is 100123043421097. The next prime is 100123043421179. The reversal of 100123043421142 is 241124340321001.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 100123043421142.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 353814084 + ... + 354096952.

It is an arithmetic number, because the mean of its divisors is an integer number (3708417638205).

Almost surely, 2^{100123043421142} is an apocalyptic number.

100123043421142 is a deficient number, since it is larger than the sum of its proper divisors (77881003212698).

100123043421142 is a wasteful number, since it uses less digits than its factorization.

100123043421142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351085 (or 351078 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 100123043421142 its reverse (241124340321001), we get a palindrome (341247383742143).

The spelling of 100123043421142 in words is "one hundred trillion, one hundred twenty-three billion, forty-three million, four hundred twenty-one thousand, one hundred forty-two".