20321123320110 has 32 divisors (see below), whose sum is σ = 48770934066720. Its totient is φ = 5418939763328.

The previous prime is 20321123320081. The next prime is 20321123320153. The reversal of 20321123320110 is 1102332112302.

It is a super-2 number, since 2×20321123320110² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5037904 + ... + 8125436.

It is an arithmetic number, because the mean of its divisors is an integer number (1524091689585).

Almost surely, 2^{20321123320110} is an apocalyptic number.

20321123320110 is an abundant number, since it is smaller than the sum of its proper divisors (28449810746610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20321123320110 is a wasteful number, since it uses less digits than its factorization.

20321123320110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3306932.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20321123320110 its reverse (1102332112302), we get a palindrome (21423455432412).

The spelling of 20321123320110 in words is "twenty trillion, three hundred twenty-one billion, one hundred twenty-three million, three hundred twenty thousand, one hundred ten".