103213506 has 32 divisors (see below), whose sum is σ = 226209600. Its totient is φ = 31135680.

The previous prime is 103213499. The next prime is 103213507. The reversal of 103213506 is 605312301.

It is not an unprimeable number, because it can be changed into a prime (103213507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11700 + ... + 18528.

It is an arithmetic number, because the mean of its divisors is an integer number (7069050).

Almost surely, 2^103213506 is an apocalyptic number.

103213506 is an abundant number, since it is smaller than the sum of its proper divisors (122996094).

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

103213506 is a wasteful number, since it uses less digits than its factorization.

103213506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7074.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 103213506 is about 10159.4048054008. The cubic root of 103213506 is about 469.0784810844.

Adding to 103213506 its reverse (605312301), we get a palindrome (708525807).

The spelling of 103213506 in words is "one hundred three million, two hundred thirteen thousand, five hundred six".