103321399 has 4 divisors (see below), whose sum is σ = 103567240. Its totient is φ = 103075560.

The previous prime is 103321367. The next prime is 103321409. The reversal of 103321399 is 993123301.

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

It is a cyclic number.

It is not a de Polignac number, because 103321399 - 2⁵ = 103321367 is a prime.

It is a super-2 number, since 2×103321399² = 21350622982634402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103321399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103321349) 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, 122289 + ... + 123130.

It is an arithmetic number, because the mean of its divisors is an integer number (25891810).

Almost surely, 2^103321399 is an apocalyptic number.

103321399 is a deficient number, since it is larger than the sum of its proper divisors (245841).

103321399 is an equidigital number, since it uses as much as digits as its factorization.

103321399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245840.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 103321399 is about 10164.7134243913. The cubic root of 103321399 is about 469.2418726850.

The spelling of 103321399 in words is "one hundred three million, three hundred twenty-one thousand, three hundred ninety-nine".