1043120420 has 24 divisors (see below), whose sum is σ = 2191197624. Its totient is φ = 417125376.

The previous prime is 1043120411. The next prime is 1043120431. The reversal of 1043120420 is 240213401.

It can be written as a sum of positive squares in 4 ways, for example, as 225961024 + 817159396 = 15032^2 + 28586^2 .

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 7 ways as a sum of consecutive naturals, for example, 96404 + ... + 106676.

It is an arithmetic number, because the mean of its divisors is an integer number (91299901).

Almost surely, 2^1043120420 is an apocalyptic number.

1043120420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1043120420 is an abundant number, since it is smaller than the sum of its proper divisors (1148077204).

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

1043120420 is a wasteful number, since it uses less digits than its factorization.

1043120420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15359 (or 15357 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1043120420 is about 32297.3748159196. The cubic root of 1043120420 is about 1014.1716878646.

Adding to 1043120420 its reverse (240213401), we get a palindrome (1283333821).

The spelling of 1043120420 in words is "one billion, forty-three million, one hundred twenty thousand, four hundred twenty".