20321121110 has 32 divisors (see below), whose sum is σ = 38573763840. Its totient is φ = 7686518112.

The previous prime is 20321121109. The next prime is 20321121127. The reversal of 20321121110 is 1112112302.

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, 6167 + ... + 201693.

It is an arithmetic number, because the mean of its divisors is an integer number (1205430120).

Almost surely, 2^20321121110 is an apocalyptic number.

20321121110 is a deficient number, since it is larger than the sum of its proper divisors (18252642730).

20321121110 is a wasteful number, since it uses less digits than its factorization.

20321121110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196100.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 20321121110 its reverse (1112112302), we get a palindrome (21433233412).

The spelling of 20321121110 in words is "twenty billion, three hundred twenty-one million, one hundred twenty-one thousand, one hundred ten".