100123043421033 has 12 divisors (see below), whose sum is σ = 144876342860340. Its totient is φ = 66631386830976.

The previous prime is 100123043421031. The next prime is 100123043421083. The reversal of 100123043421033 is 330124340321001.

It is a happy number.

100123043421033 is a `hidden beast` number, since 1 + 0 + 0 + 1 + 2 + 304 + 342 + 10 + 3 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12380911897104 + 87742131523929 = 3518652^2 + 9367077^2 .

It is not a de Polignac number, because 100123043421033 - 2¹ = 100123043421031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100123043420988 and 100123043421006.

It is not an unprimeable number, because it can be changed into a prime (100123043421031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9775726516 + ... + 9775736757.

It is an arithmetic number, because the mean of its divisors is an integer number (12073028571695).

Almost surely, 2^{100123043421033} is an apocalyptic number.

It is an amenable number.

100123043421033 is a deficient number, since it is larger than the sum of its proper divisors (44753299439307).

100123043421033 is a wasteful number, since it uses less digits than its factorization.

100123043421033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19551463848 (or 19551463845 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 100123043421033 its reverse (330124340321001), we get a palindrome (430247383742034).

The spelling of 100123043421033 in words is "one hundred trillion, one hundred twenty-three billion, forty-three million, four hundred twenty-one thousand, thirty-three".