2143021104 has 160 divisors (see below), whose sum is σ = 7054548480. Its totient is φ = 610156800.

The previous prime is 2143021061. The next prime is 2143021109. The reversal of 2143021104 is 4011203412.

2143021104 is a `hidden beast` number, since 21 + 430 + 211 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2143021109) 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 31 ways as a sum of consecutive naturals, for example, 999874 + ... + 1002014.

It is an arithmetic number, because the mean of its divisors is an integer number (44090928).

Almost surely, 2^2143021104 is an apocalyptic number.

2143021104 is a gapful number since it is divisible by the number (24) 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 2143021104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3527274240).

2143021104 is an abundant number, since it is smaller than the sum of its proper divisors (4911527376).

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

2143021104 is a wasteful number, since it uses less digits than its factorization.

2143021104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2496 (or 2484 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2143021104 is about 46292.7759375045. The cubic root of 2143021104 is about 1289.2648704985.

Adding to 2143021104 its reverse (4011203412), we get a palindrome (6154224516).

The spelling of 2143021104 in words is "two billion, one hundred forty-three million, twenty-one thousand, one hundred four".