103321213 has 4 divisors (see below), whose sum is σ = 105072480. Its totient is φ = 101569948.

The previous prime is 103321201. The next prime is 103321237. The reversal of 103321213 is 312123301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103321213 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 (103321243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 875545 + ... + 875662.

It is an arithmetic number, because the mean of its divisors is an integer number (26268120).

Almost surely, 2^103321213 is an apocalyptic number.

It is an amenable number.

103321213 is a deficient number, since it is larger than the sum of its proper divisors (1751267).

103321213 is an equidigital number, since it uses as much as digits as its factorization.

103321213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751266.

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

The square root of 103321213 is about 10164.7042750884. The cubic root of 103321213 is about 469.2415911072.

Adding to 103321213 its reverse (312123301), we get a palindrome (415444514).

The spelling of 103321213 in words is "one hundred three million, three hundred twenty-one thousand, two hundred thirteen".