20123021303 has 8 divisors (see below), whose sum is σ = 25088442240. Its totient is φ = 15680276280.

The previous prime is 20123021299. The next prime is 20123021309. The reversal of 20123021303 is 30312032102.

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 20123021303 - 2² = 20123021299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123021309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130668893 + ... + 130669046.

It is an arithmetic number, because the mean of its divisors is an integer number (3136055280).

Almost surely, 2^20123021303 is an apocalyptic number.

20123021303 is a deficient number, since it is larger than the sum of its proper divisors (4965420937).

20123021303 is a wasteful number, since it uses less digits than its factorization.

20123021303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261337957.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20123021303 its reverse (30312032102), we get a palindrome (50435053405).

The spelling of 20123021303 in words is "twenty billion, one hundred twenty-three million, twenty-one thousand, three hundred three".