1020320142 has 8 divisors (see below), whose sum is σ = 2040640296. Its totient is φ = 340106712.

The previous prime is 1020320141. The next prime is 1020320167. The reversal of 1020320142 is 2410230201.

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

1020320142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020320141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85026673 + ... + 85026684.

It is an arithmetic number, because the mean of its divisors is an integer number (255080037).

Almost surely, 2^1020320142 is an apocalyptic number.

1020320142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1020320142 is a wasteful number, since it uses less digits than its factorization.

1020320142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170053362.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1020320142 is about 31942.4504695554. The cubic root of 1020320142 is about 1006.7280129908.

Adding to 1020320142 its reverse (2410230201), we get a palindrome (3430550343).

The spelling of 1020320142 in words is "one billion, twenty million, three hundred twenty thousand, one hundred forty-two".