20213203011 has 8 divisors (see below), whose sum is σ = 26951737680. Its totient is φ = 13475068512.

The previous prime is 20213203007. The next prime is 20213203063. The reversal of 20213203011 is 11030231202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20213203011 - 2² = 20213203007 is a prime.

It is a super-2 number, since 2×20213203011² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20213203211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49945 + ... + 207173.

It is an arithmetic number, because the mean of its divisors is an integer number (3368967210).

Almost surely, 2^20213203011 is an apocalyptic number.

20213203011 is a deficient number, since it is larger than the sum of its proper divisors (6738534669).

20213203011 is a wasteful number, since it uses less digits than its factorization.

20213203011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200085.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20213203011 its reverse (11030231202), we get a palindrome (31243434213).

The spelling of 20213203011 in words is "twenty billion, two hundred thirteen million, two hundred three thousand, eleven".