1420321110 has 128 divisors (see below), whose sum is σ = 3921039360. Its totient is φ = 326592000.

The previous prime is 1420321087. The next prime is 1420321163. The reversal of 1420321110 is 111230241.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1420321110.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 348585 + ... + 352635.

It is an arithmetic number, because the mean of its divisors is an integer number (30633120).

Almost surely, 2^1420321110 is an apocalyptic number.

1420321110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1420321110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1960519680).

1420321110 is an abundant number, since it is smaller than the sum of its proper divisors (2500718250).

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

1420321110 is a wasteful number, since it uses less digits than its factorization.

1420321110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4134.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1420321110 is about 37687.1478092997. The cubic root of 1420321110 is about 1124.0755823382.

Adding to 1420321110 its reverse (111230241), we get a palindrome (1531551351).

The spelling of 1420321110 in words is "one billion, four hundred twenty million, three hundred twenty-one thousand, one hundred ten".