100023310312121 has 4 divisors (see below), whose sum is σ = 114312354642432. Its totient is φ = 85734265981812.

The previous prime is 100023310312117. The next prime is 100023310312157. The reversal of 100023310312121 is 121213013320001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 100023310312121 - 2² = 100023310312117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 100023310312093 and 100023310312102.

It is not an unprimeable number, because it can be changed into a prime (100023310312621) 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, 7144522165145 + ... + 7144522165158.

It is an arithmetic number, because the mean of its divisors is an integer number (28578088660608).

Almost surely, 2^{100023310312121} is an apocalyptic number.

It is an amenable number.

100023310312121 is a deficient number, since it is larger than the sum of its proper divisors (14289044330311).

100023310312121 is an equidigital number, since it uses as much as digits as its factorization.

100023310312121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14289044330310.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 100023310312121 its reverse (121213013320001), we get a palindrome (221236323632122).

The spelling of 100023310312121 in words is "one hundred trillion, twenty-three billion, three hundred ten million, three hundred twelve thousand, one hundred twenty-one".