100121010100023 has 12 divisors (see below), whose sum is σ = 146733821965304. Its totient is φ = 60679400060400.

The previous prime is 100121010099997. The next prime is 100121010100051. The reversal of 100121010100023 is 320001010121001.

It is not a de Polignac number, because 100121010100023 - 2⁸ = 100121010099767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100121010099981 and 100121010100008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100121010100823) 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, 137907727048 + ... + 137907727773.

Almost surely, 2^{100121010100023} is an apocalyptic number.

100121010100023 is a deficient number, since it is larger than the sum of its proper divisors (46612811865281).

100121010100023 is a wasteful number, since it uses less digits than its factorization.

100121010100023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275815454846 (or 275815454835 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 100121010100023 its reverse (320001010121001), we get a palindrome (420122020221024).

The spelling of 100121010100023 in words is "one hundred trillion, one hundred twenty-one billion, ten million, one hundred thousand, twenty-three".