103212020 has 24 divisors (see below), whose sum is σ = 223738368. Its totient is φ = 39952800.

The previous prime is 103212019. The next prime is 103212023. The reversal of 103212020 is 20212301.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 103211992 and 103212010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103212023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82616 + ... + 83855.

It is an arithmetic number, because the mean of its divisors is an integer number (9322432).

Almost surely, 2^103212020 is an apocalyptic number.

103212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103212020 is an abundant number, since it is smaller than the sum of its proper divisors (120526348).

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

103212020 is a wasteful number, since it uses less digits than its factorization.

103212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166511 (or 166509 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 103212020 is about 10159.3316709319. The cubic root of 103212020 is about 469.0762299127.

Adding to 103212020 its reverse (20212301), we get a palindrome (123424321).

The spelling of 103212020 in words is "one hundred three million, two hundred twelve thousand, twenty".