103219020 has 72 divisors (see below), whose sum is σ = 329587440. Its totient is φ = 26075520.

The previous prime is 103218989. The next prime is 103219027. The reversal of 103219020 is 20912301.

103219020 = 995² + 996² + ... + 1089².

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 103218984 and 103219002.

It is not an unprimeable number, because it can be changed into a prime (103219027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11671 + ... + 18510.

Almost surely, 2^103219020 is an apocalyptic number.

103219020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103219020 is an abundant number, since it is smaller than the sum of its proper divisors (226368420).

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

103219020 is a wasteful number, since it uses less digits than its factorization.

103219020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30215 (or 30210 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 103219020 is about 10159.6761759418. The cubic root of 103219020 is about 469.0868341665.

The spelling of 103219020 in words is "one hundred three million, two hundred nineteen thousand, twenty".