20023320131011 has 8 divisors (see below), whose sum is σ = 20028106962864. Its totient is φ = 20018533583520.

The previous prime is 20023320130993. The next prime is 20023320131041. The reversal of 20023320131011 is 11013102332002.

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 20023320131011 - 2¹¹ = 20023320128963 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20023320131011.

It is not an unprimeable number, because it can be changed into a prime (20023320131041) 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, 215135361 + ... + 215228413.

It is an arithmetic number, because the mean of its divisors is an integer number (2503513370358).

Almost surely, 2^{20023320131011} is an apocalyptic number.

20023320131011 is a deficient number, since it is larger than the sum of its proper divisors (4786831853).

20023320131011 is an equidigital number, since it uses as much as digits as its factorization.

20023320131011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142181.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20023320131011 its reverse (11013102332002), we get a palindrome (31036422463013).

The spelling of 20023320131011 in words is "twenty trillion, twenty-three billion, three hundred twenty million, one hundred thirty-one thousand, eleven".