100120121323 has 16 divisors (see below), whose sum is σ = 105195377664. Its totient is φ = 95168573280.

The previous prime is 100120121293. The next prime is 100120121359. The reversal of 100120121323 is 323121021001.

It is a cyclic number.

It is not a de Polignac number, because 100120121323 - 2⁵ = 100120121291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100120121297 and 100120121306.

It is not an unprimeable number, because it can be changed into a prime (100120181323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 651261 + ... + 790177.

It is an arithmetic number, because the mean of its divisors is an integer number (6574711104).

Almost surely, 2^100120121323 is an apocalyptic number.

100120121323 is a deficient number, since it is larger than the sum of its proper divisors (5075256341).

100120121323 is a wasteful number, since it uses less digits than its factorization.

100120121323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139362.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 100120121323 its reverse (323121021001), we get a palindrome (423241142324).

The spelling of 100120121323 in words is "one hundred billion, one hundred twenty million, one hundred twenty-one thousand, three hundred twenty-three".