103531020 has 48 divisors (see below), whose sum is σ = 306942048. Its totient is φ = 25984000.

The previous prime is 103530997. The next prime is 103531031. The reversal of 103531020 is 20135301.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 49731 + ... + 51770.

It is an arithmetic number, because the mean of its divisors is an integer number (6394626).

Almost surely, 2^103531020 is an apocalyptic number.

103531020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103531020 is an abundant number, since it is smaller than the sum of its proper divisors (203411028).

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

103531020 is a wasteful number, since it uses less digits than its factorization.

103531020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101530 (or 101528 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 103531020 is about 10175.0194103009. The cubic root of 103531020 is about 469.5589948108.

Adding to 103531020 its reverse (20135301), we get a palindrome (123666321).

The spelling of 103531020 in words is "one hundred three million, five hundred thirty-one thousand, twenty".