20321030030111 has 8 divisors (see below), whose sum is σ = 20386656272640. Its totient is φ = 20255459525208.

The previous prime is 20321030030051. The next prime is 20321030030113. The reversal of 20321030030111 is 11103003012302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20321030030111 is a prime.

It is a super-2 number, since 2×20321030030111² (a number of 27 digits) contains 22 as substring.

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 20321030030111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20321030030113) 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, 13204001 + ... + 14662458.

It is an arithmetic number, because the mean of its divisors is an integer number (2548332034080).

Almost surely, 2^{20321030030111} is an apocalyptic number.

20321030030111 is a deficient number, since it is larger than the sum of its proper divisors (65626242529).

20321030030111 is a wasteful number, since it uses less digits than its factorization.

20321030030111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27868813.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20321030030111 its reverse (11103003012302), we get a palindrome (31424033042413).

The spelling of 20321030030111 in words is "twenty trillion, three hundred twenty-one billion, thirty million, thirty thousand, one hundred eleven".