100123020133023 has 4 divisors (see below), whose sum is σ = 133497360177368. Its totient is φ = 66748680088680.

The previous prime is 100123020132977. The next prime is 100123020133027. The reversal of 100123020133023 is 320331020321001.

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

It is not a de Polignac number, because 100123020133023 - 2¹² = 100123020128927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100123020133027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16687170022168 + ... + 16687170022173.

It is an arithmetic number, because the mean of its divisors is an integer number (33374340044342).

Almost surely, 2^{100123020133023} is an apocalyptic number.

100123020133023 is a deficient number, since it is larger than the sum of its proper divisors (33374340044345).

100123020133023 is an equidigital number, since it uses as much as digits as its factorization.

100123020133023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33374340044344.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 100123020133023 its reverse (320331020321001), we get a palindrome (420454040454024).

The spelling of 100123020133023 in words is "one hundred trillion, one hundred twenty-three billion, twenty million, one hundred thirty-three thousand, twenty-three".