1421043120 has 360 divisors, whose sum is σ = 5676225984. Its totient is φ = 317528064.

The previous prime is 1421043089. The next prime is 1421043179. The reversal of 1421043120 is 213401241.

1421043120 is a `hidden beast` number, since 1 + 4 + 210 + 431 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

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

It is a junction number, because it is equal to n+sod(n) for n = 1421043093 and 1421043102.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1657732 + ... + 1658588.

Almost surely, 2^1421043120 is an apocalyptic number.

1421043120 is a gapful number since it is divisible by the number (10) 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 1421043120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2838112992).

1421043120 is an abundant number, since it is smaller than the sum of its proper divisors (4255182864).

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

1421043120 is a wasteful number, since it uses less digits than its factorization.

1421043120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937 (or 921 counting only the distinct ones).

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

The square root of 1421043120 is about 37696.7255872443. The cubic root of 1421043120 is about 1124.2660219793.

Adding to 1421043120 its reverse (213401241), we get a palindrome (1634444361).

The spelling of 1421043120 in words is "one billion, four hundred twenty-one million, forty-three thousand, one hundred twenty".