103142020 has 12 divisors (see below), whose sum is σ = 216598284. Its totient is φ = 41256800.

The previous prime is 103141981. The next prime is 103142027. The reversal of 103142020 is 20241301.

It can be written as a sum of positive squares in 2 ways, for example, as 41550916 + 61591104 = 6446^2 + 7848^2 .

It is not an unprimeable number, because it can be changed into a prime (103142027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2578531 + ... + 2578570.

It is an arithmetic number, because the mean of its divisors is an integer number (18049857).

Almost surely, 2^103142020 is an apocalyptic number.

103142020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103142020 is an abundant number, since it is smaller than the sum of its proper divisors (113456264).

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

103142020 is a wasteful number, since it uses less digits than its factorization.

103142020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5157110 (or 5157108 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 103142020 is about 10155.8859780917. The cubic root of 103142020 is about 468.9701609941.

Adding to 103142020 its reverse (20241301), we get a palindrome (123383321).

The spelling of 103142020 in words is "one hundred three million, one hundred forty-two thousand, twenty".