20002011231 has 8 divisors (see below), whose sum is σ = 26742018304. Its totient is φ = 13298339160.

The previous prime is 20002011209. The next prime is 20002011241. The reversal of 20002011231 is 13211020002.

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

It is not a de Polignac number, because 20002011231 - 2⁷ = 20002011103 is a prime.

It is a super-2 number, since 2×20002011231² (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 (20002011241) 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, 9082465 + ... + 9084666.

It is an arithmetic number, because the mean of its divisors is an integer number (3342752288).

Almost surely, 2^20002011231 is an apocalyptic number.

20002011231 is a deficient number, since it is larger than the sum of its proper divisors (6740007073).

20002011231 is a wasteful number, since it uses less digits than its factorization.

20002011231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18167501.

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

Adding to 20002011231 its reverse (13211020002), we get a palindrome (33213031233).

The spelling of 20002011231 in words is "twenty billion, two million, eleven thousand, two hundred thirty-one".