103312213 has 4 divisors (see below), whose sum is σ = 109389420. Its totient is φ = 97235008.

The previous prime is 103312151. The next prime is 103312217. The reversal of 103312213 is 312213301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63091249 + 40220964 = 7943^2 + 6342^2 .

It is a cyclic number.

It is not a de Polignac number, because 103312213 - 2⁹ = 103311701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103312217) 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 3 ways as a sum of consecutive naturals, for example, 3038578 + ... + 3038611.

It is an arithmetic number, because the mean of its divisors is an integer number (27347355).

Almost surely, 2^103312213 is an apocalyptic number.

It is an amenable number.

103312213 is a deficient number, since it is larger than the sum of its proper divisors (6077207).

103312213 is an equidigital number, since it uses as much as digits as its factorization.

103312213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6077206.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 103312213 is about 10164.2615570439. The cubic root of 103312213 is about 469.2279659705.

Adding to 103312213 its reverse (312213301), we get a palindrome (415525514).

It can be divided in two parts, 10331 and 2213, that added together give a square (12544 = 112²).

The spelling of 103312213 in words is "one hundred three million, three hundred twelve thousand, two hundred thirteen".