20211002303 has 4 divisors (see below), whose sum is σ = 20263772928. Its totient is φ = 20158231680.

The previous prime is 20211002281. The next prime is 20211002309. The reversal of 20211002303 is 30320011202.

It is a happy number.

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 20211002303 - 2⁸ = 20211002047 is a prime.

It is a super-2 number, since 2×20211002303² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211002309) 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, 26384738 + ... + 26385503.

It is an arithmetic number, because the mean of its divisors is an integer number (5065943232).

Almost surely, 2^20211002303 is an apocalyptic number.

20211002303 is a deficient number, since it is larger than the sum of its proper divisors (52770625).

20211002303 is an equidigital number, since it uses as much as digits as its factorization.

20211002303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52770624.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20211002303 its reverse (30320011202), we get a palindrome (50531013505).

The spelling of 20211002303 in words is "twenty billion, two hundred eleven million, two thousand, three hundred three".