20101212323 has 8 divisors (see below), whose sum is σ = 20468215488. Its totient is φ = 19737181224.

The previous prime is 20101212281. The next prime is 20101212359. The reversal of 20101212323 is 32321210102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20101212323 - 2⁸ = 20101212067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20101212023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729365 + ... + 756422.

It is an arithmetic number, because the mean of its divisors is an integer number (2558526936).

Almost surely, 2^20101212323 is an apocalyptic number.

20101212323 is a deficient number, since it is larger than the sum of its proper divisors (367003165).

20101212323 is a wasteful number, since it uses less digits than its factorization.

20101212323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486033.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20101212323 its reverse (32321210102), we get a palindrome (52422422425).

The spelling of 20101212323 in words is "twenty billion, one hundred one million, two hundred twelve thousand, three hundred twenty-three".