20213420303 has 8 divisors (see below), whose sum is σ = 21138429408. Its totient is φ = 19292258304.

The previous prime is 20213420299. The next prime is 20213420323. The reversal of 20213420303 is 30302431202.

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 20213420303 - 2² = 20213420299 is a prime.

It is a super-2 number, since 2×20213420303² (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 (20213420323) 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, 951026 + ... + 972047.

It is an arithmetic number, because the mean of its divisors is an integer number (2642303676).

Almost surely, 2^20213420303 is an apocalyptic number.

20213420303 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20213420303 is a deficient number, since it is larger than the sum of its proper divisors (925009105).

20213420303 is a wasteful number, since it uses less digits than its factorization.

20213420303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1923553.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20213420303 its reverse (30302431202), we get a palindrome (50515851505).

The spelling of 20213420303 in words is "twenty billion, two hundred thirteen million, four hundred twenty thousand, three hundred three".