103520220 has 48 divisors (see below), whose sum is σ = 294779520. Its totient is φ = 27136576.

The previous prime is 103520213. The next prime is 103520237. The reversal of 103520220 is 22025301.

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

It is a self number, because there is not a number n which added to its sum of digits gives 103520220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11082 + ... + 18161.

It is an arithmetic number, because the mean of its divisors is an integer number (6141240).

Almost surely, 2^103520220 is an apocalyptic number.

103520220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103520220 is an abundant number, since it is smaller than the sum of its proper divisors (191259300).

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

103520220 is a wasteful number, since it uses less digits than its factorization.

103520220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29314 (or 29312 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 103520220 is about 10174.4886849414. The cubic root of 103520220 is about 469.5426666498.

Adding to 103520220 its reverse (22025301), we get a palindrome (125545521).

It can be divided in two parts, 103520 and 220, that added together give a triangular number (103740 = T₄₅₅).

The spelling of 103520220 in words is "one hundred three million, five hundred twenty thousand, two hundred twenty".