20012010221303 has 4 divisors (see below), whose sum is σ = 20013621376968. Its totient is φ = 20010399065640.

The previous prime is 20012010221243. The next prime is 20012010221309. The reversal of 20012010221303 is 30312201021002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20012010221303 - 2⁶ = 20012010221239 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 (20012010221309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 805559201 + ... + 805584042.

It is an arithmetic number, because the mean of its divisors is an integer number (5003405344242).

Almost surely, 2^{20012010221303} is an apocalyptic number.

20012010221303 is a deficient number, since it is larger than the sum of its proper divisors (1611155665).

20012010221303 is a wasteful number, since it uses less digits than its factorization.

20012010221303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611155664.

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

Adding to 20012010221303 its reverse (30312201021002), we get a palindrome (50324211242305).

The spelling of 20012010221303 in words is "twenty trillion, twelve billion, ten million, two hundred twenty-one thousand, three hundred three".