20100100323 has 64 divisors (see below), whose sum is σ = 29933568000. Its totient is φ = 11945854080.

The previous prime is 20100100259. The next prime is 20100100343. The reversal of 20100100323 is 32300100102.

It is a happy number.

It is not a de Polignac number, because 20100100323 - 2⁶ = 20100100259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20100100299 and 20100100308.

It is not an unprimeable number, because it can be changed into a prime (20100100343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14366778 + ... + 14368176.

It is an arithmetic number, because the mean of its divisors is an integer number (467712000).

Almost surely, 2^20100100323 is an apocalyptic number.

20100100323 is a deficient number, since it is larger than the sum of its proper divisors (9833467677).

20100100323 is a wasteful number, since it uses less digits than its factorization.

20100100323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 20100100323 its reverse (32300100102), we get a palindrome (52400200425).

The spelling of 20100100323 in words is "twenty billion, one hundred million, one hundred thousand, three hundred twenty-three".