2130421420 has 24 divisors (see below), whose sum is σ = 4476944304. Its totient is φ = 851585856.

The previous prime is 2130421411. The next prime is 2130421439. The reversal of 2130421420 is 241240312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5814 + ... + 65533.

It is an arithmetic number, because the mean of its divisors is an integer number (186539346).

Almost surely, 2^2130421420 is an apocalyptic number.

2130421420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2130421420 is an abundant number, since it is smaller than the sum of its proper divisors (2346522884).

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

2130421420 is a wasteful number, since it uses less digits than its factorization.

2130421420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72849 (or 72847 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2130421420 is about 46156.4883846248. The cubic root of 2130421420 is about 1286.7331999863.

Adding to 2130421420 its reverse (241240312), we get a palindrome (2371661732).

It can be divided in two parts, 21304 and 21420, that added together give a palindrome (42724).

The spelling of 2130421420 in words is "two billion, one hundred thirty million, four hundred twenty-one thousand, four hundred twenty".