103213020 has 24 divisors (see below), whose sum is σ = 288996624. Its totient is φ = 27523456.

The previous prime is 103213009. The next prime is 103213039. The reversal of 103213020 is 20312301.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 103212987 and 103213005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 860049 + ... + 860168.

It is an arithmetic number, because the mean of its divisors is an integer number (12041526).

Almost surely, 2^103213020 is an apocalyptic number.

103213020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103213020 is an abundant number, since it is smaller than the sum of its proper divisors (185783604).

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

103213020 is a wasteful number, since it uses less digits than its factorization.

103213020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720229 (or 1720227 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 103213020 is about 10159.3808866486. The cubic root of 103213020 is about 469.0777448355.

Adding to 103213020 its reverse (20312301), we get a palindrome (123525321).

The spelling of 103213020 in words is "one hundred three million, two hundred thirteen thousand, twenty".