20102020323 has 16 divisors (see below), whose sum is σ = 33416345856. Its totient is φ = 10442607840.

The previous prime is 20102020321. The next prime is 20102020327. The reversal of 20102020323 is 32302020102.

It is not a de Polignac number, because 20102020323 - 2¹ = 20102020321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20102020321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43510636 + ... + 43511097.

It is an arithmetic number, because the mean of its divisors is an integer number (2088521616).

Almost surely, 2^20102020323 is an apocalyptic number.

20102020323 is a deficient number, since it is larger than the sum of its proper divisors (13314325533).

20102020323 is a wasteful number, since it uses less digits than its factorization.

20102020323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87021754.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20102020323 its reverse (32302020102), we get a palindrome (52404040425).

The spelling of 20102020323 in words is "twenty billion, one hundred two million, twenty thousand, three hundred twenty-three".