100121310023 has 4 divisors (see below), whose sum is σ = 114424354320. Its totient is φ = 85818265728.

The previous prime is 100121310019. The next prime is 100121310041. The reversal of 100121310023 is 320013121001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320013121001 = 7 ⋅45716160143.

It is a cyclic number.

It is not a de Polignac number, because 100121310023 - 2² = 100121310019 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 (100121310083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7151522138 + ... + 7151522151.

It is an arithmetic number, because the mean of its divisors is an integer number (28606088580).

Almost surely, 2^100121310023 is an apocalyptic number.

100121310023 is a deficient number, since it is larger than the sum of its proper divisors (14303044297).

100121310023 is an equidigital number, since it uses as much as digits as its factorization.

100121310023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14303044296.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 100121310023 its reverse (320013121001), we get a palindrome (420134431024).

The spelling of 100121310023 in words is "one hundred billion, one hundred twenty-one million, three hundred ten thousand, twenty-three".