20021203011 has 8 divisors (see below), whose sum is σ = 26700082960. Its totient is φ = 13344895872.

The previous prime is 20021203003. The next prime is 20021203061. The reversal of 20021203011 is 11030212002.

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

It is not a de Polignac number, because 20021203011 - 2³ = 20021203003 is a prime.

It is a super-2 number, since 2×20021203011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20021203061) 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, 624970 + ... + 656223.

It is an arithmetic number, because the mean of its divisors is an integer number (3337510370).

Almost surely, 2^20021203011 is an apocalyptic number.

20021203011 is a deficient number, since it is larger than the sum of its proper divisors (6678879949).

20021203011 is a wasteful number, since it uses less digits than its factorization.

20021203011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286405.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20021203011 its reverse (11030212002), we get a palindrome (31051415013).

The spelling of 20021203011 in words is "twenty billion, twenty-one million, two hundred three thousand, eleven".