1020032143 has 8 divisors (see below), whose sum is σ = 1099411488. Its totient is φ = 940783584.

The previous prime is 1020032077. The next prime is 1020032171. The reversal of 1020032143 is 3412300201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1020032143 - 2¹³ = 1020023951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020032173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16180 + ... + 47977.

It is an arithmetic number, because the mean of its divisors is an integer number (137426436).

Almost surely, 2^1020032143 is an apocalyptic number.

1020032143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1020032143 is a deficient number, since it is larger than the sum of its proper divisors (79379345).

1020032143 is a wasteful number, since it uses less digits than its factorization.

1020032143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65393.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1020032143 is about 31937.9420595629. The cubic root of 1020032143 is about 1006.6332832640.

Adding to 1020032143 its reverse (3412300201), we get a palindrome (4432332344).

The spelling of 1020032143 in words is "one billion, twenty million, thirty-two thousand, one hundred forty-three".