20110310420 has 96 divisors (see below), whose sum is σ = 44753385600. Its totient is φ = 7579353600.

The previous prime is 20110310417. The next prime is 20110310431. The reversal of 20110310420 is 2401301102.

It is a junction number, because it is equal to n+sod(n) for n = 20110310395 and 20110310404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4632611 + ... + 4636949.

It is an arithmetic number, because the mean of its divisors is an integer number (466181100).

Almost surely, 2^20110310420 is an apocalyptic number.

20110310420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20110310420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22376692800).

20110310420 is an abundant number, since it is smaller than the sum of its proper divisors (24643075180).

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

20110310420 is a wasteful number, since it uses less digits than its factorization.

20110310420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4569 (or 4567 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20110310420 its reverse (2401301102), we get a palindrome (22511611522).

The spelling of 20110310420 in words is "twenty billion, one hundred ten million, three hundred ten thousand, four hundred twenty".