20110342321 has 16 divisors (see below), whose sum is σ = 21627169344. Its totient is φ = 18631033344.

The previous prime is 20110342271. The next prime is 20110342327. The reversal of 20110342321 is 12324301102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20110342321 - 2²³ = 20101953713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20110342327) by changing a digit.

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, 1728901 + ... + 1740493.

It is an arithmetic number, because the mean of its divisors is an integer number (1351698084).

Almost surely, 2^20110342321 is an apocalyptic number.

It is an amenable number.

20110342321 is a deficient number, since it is larger than the sum of its proper divisors (1516827023).

20110342321 is a wasteful number, since it uses less digits than its factorization.

20110342321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13200.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20110342321 its reverse (12324301102), we get a palindrome (32434643423).

The spelling of 20110342321 in words is "twenty billion, one hundred ten million, three hundred forty-two thousand, three hundred twenty-one".