20310121110 has 32 divisors (see below), whose sum is σ = 49043347200. Its totient is φ = 5382803808.

The previous prime is 20310121103. The next prime is 20310121123. The reversal of 20310121110 is 1112101302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2071810 + ... + 2081589.

It is an arithmetic number, because the mean of its divisors is an integer number (1532604600).

Almost surely, 2^20310121110 is an apocalyptic number.

20310121110 is an abundant number, since it is smaller than the sum of its proper divisors (28733226090).

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

20310121110 is a wasteful number, since it uses less digits than its factorization.

20310121110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4153572.

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

Adding to 20310121110 its reverse (1112101302), we get a palindrome (21422222412).

The spelling of 20310121110 in words is "twenty billion, three hundred ten million, one hundred twenty-one thousand, one hundred ten".