20420200110 has 32 divisors (see below), whose sum is σ = 49484298240. Its totient is φ = 5392518048.

The previous prime is 20420200109. The next prime is 20420200111. The reversal of 20420200110 is 1100202402.

It is an interprime number because it is at equal distance from previous prime (20420200109) and next prime (20420200111).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20420200111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3301150 + ... + 3307329.

It is an arithmetic number, because the mean of its divisors is an integer number (1546384320).

Almost surely, 2^20420200110 is an apocalyptic number.

20420200110 is an abundant number, since it is smaller than the sum of its proper divisors (29064098130).

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

20420200110 is a wasteful number, since it uses less digits than its factorization.

20420200110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6608592.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20420200110 its reverse (1100202402), we get a palindrome (21520402512).

The spelling of 20420200110 in words is "twenty billion, four hundred twenty million, two hundred thousand, one hundred ten".